The primary responsibility of a project steering committee is to provide regular project updates and oversight.
A project steering committee is an advisory group that consists of senior stakeholders and experts who offer guidance and support to a project manager and their team. The steering committee is mainly concerned with the direction, scope, budget, timeline, and methods used to realize a given project1.
One of the key roles of a steering committee is to monitor the progress and performance of the project and ensure that it aligns with the business objectives and stakeholder expectations. The steering committee also provides feedback, advice, and recommendations to the project manager and helps them resolve any issues or challenges that may arise during the project lifecycle. The steering committee communicates regularly with the project manager and other stakeholders through meetings, reports, and presentations23.
Therefore, providing regular project updates and oversight is the primary responsibility of a project steering committee.
References:
Steering Committee: Definition, Roles and Meeting Tips - ProjectManager Project Steering Committee: Roles, Best Practices, Challenges - ProjectPractical Steering Committee: Complete Guide with Examples and Templates - Status.net

A web-based CRM system that is directly accessed by customers via the Internet should be hosted in a secure and isolated environment to protect it from external threats and unauthorized access. A web-based CRM system should also be reliable, trusted, and backedup regularly1.
Hosting the system on an external third-party service provider's servers (A) or a hybrid-cloud platform managed by a service provider (B) may not be a concern for the auditor if the service provider has adequate security measures and service level agreements in place. The auditor should verify the security controls and contractual terms of the service provider before trusting them with the CRM data23.
Hosting the system within a demilitarized zone (DMZ) of a corporate network is a common practice to provide an extra layer of security to the CRM system from untrusted networks, such as the Internet. A DMZ is a perimeter network that isolates the CRM system from the internal network and filters the incoming traffic from the external network using a security gateway4567.
Hosting the system within an internal segment of a corporate network (D) is a concern for the auditor because it exposes the CRM system and the internal network to potential attacks from the Internet. The CRM system should not be directly accessible from the Internet without a DMZ or a firewall to protect it. This could compromise the confidentiality, integrity, and availability of the CRM data and the internal network78.

The first thing that an IS auditor should do when management responses to an in-person internal control questionnaire indicate a key internal control is no longer effective is to ascertain the existence of other compensating controls. Compensating controls are alternative controls that provide reasonable assurance of achieving the same objective as the original control. The IS auditor should verify whether there are any compensating controls in place that can mitigate the risk of the key control being ineffective, and evaluate their adequacy and effectiveness. The other options are not the first steps, because theyeither require more information about the compensating controls, or they are actions to be taken after identifying and assessing the compensating controls. References: CISA Review Manual (Digital Version)1, Chapter 2, Section 2.2.3

Access rights provisioned according to scheme would best help to support an auditor's conclusion about the effectiveness of an implemented data classification program. This would indicate that the data classification program has been properly implemented and enforced, and that the data is protected according to its sensitivity and value. The other options are not sufficient to demonstrate the effectiveness of a data classification program, as they do not show how the data is actually accessed and used by authorized users. References:
CISA Review Manual (Digital Version), Chapter 6, Section 6.2.31
CISA Review Questions, Answers and Explanations Database, Question ID 2042