The key expected results of a quality management system that conforms to the requirements of ISO 9001:
2015 are stated in clause 0.1 of the standard, which says: "The adoption of a quality management system is a strategic decision for an organization that can help to improve its overall performance and provide a sound basis for sustainable development initiatives. The potential benefits to an organization of implementing a quality management system based on this International Standard are: a) the ability to consistently provide products and services that meet customer and applicable statutory and regulatory requirements; b) facilitating opportunities to enhance customer satisfaction; c) addressing risks and opportunities associated with its context and objectives; d) the ability to demonstrate conformity to specified quality management system requirements." Therefore, the two options that best match these benefits are A and E, as they directly relate to providing products and services that meet customer requirements and enhancing customer satisfaction. The other options are not explicitly mentioned as key expected results, although they may be possible outcomes of implementing a quality management system. References: ISO 9001:2015 - Quality management systems - Requirements, Key Elements of an ISO 9001:2015 Quality Management System, What is ISO 9001 2015 as a Quality Management Systems?

In this scenario, the organisation A has two plants, A1 and A2, but the production in A2 was discontinued due to the COVID-19 pandemic and the plant was rented to another organisation B. There are no A employees working in A2, and the organisation A expects to reassume production in A2 as soon as possible. Therefore, the appropriate action to plan the internal audit of A's quality management system is:
*Interview the A2 plant manager, now working in Plant A1: This action involves interviewing the person who is responsible for the management and operation of the plant A2, and who is currently working in the plant A1. The interview should aim to gather information about the status and condition of the plant A2, the impact of the COVID-19 pandemic on the quality management system, the arrangements and agreements with the organisation B, and the plans and actions to resume production in the plant A25 . This action is relevant and necessary for the internal audit, as it can help to assess the readiness and effectiveness of the quality management system, and to identify any gaps or nonconformities that need to be addressed.
The other options are not appropriate actions to plan the internal audit of A's quality management system, according to the web search results from my internal tool. They are:
*Visit Plant A2 to interview personnel of company B: This action involves visiting the plant A2 and interviewing the personnel of the organisation B, who are not related to the organisation A and who are not part of the quality management system. This action is irrelevant and unnecessary for the internal audit, as it can not provide any evidence or information about the conformity and improvement of the quality management system of the organisation A5 .
*Visit Plant A2 to interview B's quality manager: This action involves visiting the plant A2 and interviewing the quality manager of the organisation B, who is not related to the organisation A and who is not part of the quality management system. This action is irrelevant and unnecessary for the internal audit, as it can not provide any evidence or information about the conformity and improvement of the quality management system of the organisation A5 .
*Visit Plant A2 to interview A's security personnel and B's maintenance department: This action involves visiting the plant A2 and interviewing the security personnel of the organisation A and the maintenance department of the organisation B, who are not directly involved in the quality management system. This action is irrelevant and unnecessary for the internal audit, as it can not provide any evidence or information about the conformity and improvement of the quality management system of the organisation A5 .
Therefore, the correct answer is D.
References: 1: Quality audit - Wikipedia 2: A step-by-step guide to internal quality audits 3: ISO 9001:2015 - Quality management systems - Requirements 4: ISO 19011:2018 - Guidelines for auditing management systems 5: Audit Process | Flowchart | Summary - Accountinguide : What are the Stages of the Auditing Process & Why it is Important ...

Comprehensive and Detailed In-Depth Explanation:
Group interviews allow auditors to gather more information in less time by:
Obtaining input from multiple participants simultaneously.
Encouraging discussions that might highlight inconsistencies.
Reducing the number of individual interviews needed.
While auditors strive for fairness, equal time for each interviewee is not guaranteed, and paying attention to each individual is more difficult in a group setting.
Reference:
ISO 19011:2018, Clause 6.4.6 (Conducting Interviews)

B: Control of externally provided processes, products, and services: This is relevant because the organization has outsourced the manufacture of its own brand products to a supplier. According to ISO 9001, the organization must ensure that externally provided processes remain within the control of its quality management system.
C: Design and development of products and services: Even though the organization no longer manufactures in- house, it still needs to control the design and development of its products, especially since they are now being produced by an external provider.
F: Organisation roles and responsibilities: The change in strategy has led to a significant reduction in staff, which would have an impact on the roles and responsibilities within the organization. It is important to audit how these changes have been managed and communicated within the organization to ensure continued effectiveness of the quality management system.
These audit trails are aligned with the requirements of ISO 9001:2015, which emphasizes the importance of controlling externally provided processes and products, managing design and development, and clearly defining roles and responsibilities within the quality management system.