Detailed Explanation:
Dual or multiple sourcing introduces competition, reducing the sole supplier's bargaining power and leading to cost reductions. Framework agreements (A) or economies of scale (D) may not address the immediate need to reduce rates. Reference: CIPS Level 4, Sourcing Strategies.

This International Standard (ISO 27001:2013) has been prepared to provide requirements for establishing, implementing, maintaining and continually improving an information security management system. The adoption of an information security management system is a strategic decision for an organization. The establishment and implementation of an organization's information security management system is influenced by the organization's needs and objectives, security requirements, the organizational processes used and the size and structure of the organization. All of these influencing factors are expected to change over time.
The information security management system preserves the confidentiality, integrity and availability of information by applying a risk management process and gives confidence to interested parties that risks are adequately managed.
It is important that the information security management system is part of and integrated with the organization's processes and overall management structure and that information security is considered in the design of processes, information systems, and controls. It is expected that an information security management system implementation will be scaled in accordance with the needs of the organization.
This International Standard can be used by internal and external parties to assess the organization's ability to meet the organization's own information security requirements.
The order in which requirements are presented in this International Standard does not reflect their importance or imply the order in which they are to be implemented. The list items are enumerated for reference purpose only.
ISO/IEC 27000 describes the overview and the vocabulary of information security management systems, referencing the information security management system family of standards (includ-ing ISO/IEC 27003[2], ISO/IEC 27004[3] and ISO/IEC 27005[4]), with related terms and defini-tions.
Reference:
- ISO/IEC 27001:2013 Information technology - Security techniques - Information security management systems - Requirements LO 3, AC 3.1

Detailed Explanation:
B (Limited number of suppliers): Fewer suppliers lead to higher bargaining power due to reduced competition.
E (Urgent buyer requirement): Suppliers gain leverage when buyers have limited time to source alternatives.
Education on markets and buyer size are factors that strengthen buyer, not supplier, bargaining power.
Reference: CIPS Level 4, Supplier Negotiation and Market Power.

When using conformance specification, the buying organisation is responsible for the performance of the purchase. If the product fails due to poorly designed specification, the buyer is wholly responsible for it. It cannot blame the supplier for the failure because they still provided 'fit for purpose' product.
'Time to produce specification is shortened': Conformance specification requires details on dimen-sion, materials, design, etc. With such requirements, time to produce a complete conformance specification is often longer than producing performance specification.
'Buyer cannot control the inputs': Conformance specification is a list of inputs from buyer, so buyer has control over the inputs that will make the product. It also means that buyer is responsible for any product failure.
'Buyer may face liquidity risks': Liquidity means that how quick a business turns its assets into cash. This is a financial term, it does not link directly with specification failure.
Reference: CIPS study guide page 118-119
LO 3, AC 3.1