In ITIL 4, the IT asset management practice is concerned with managing IT assets so that their value is maximized, and financial, legal, and operational risks are controlled. An IT asset is defined as any financially valuable component that can contribute to the delivery of a service.
The purpose of IT asset management includes:
Making sure IT assets are used effectively
Ensuring that IT assets are accounted for and controlled
Supporting decision-making about purchase, re-use, retirement, and disposal of IT assets
This matches option B exactly:
“Supporting decision-making about purchase, re-use, retirement, and disposal of assets.”
Why the other options are not correct:
A. Moving assets to live or other environments for testing or stagingThis is part of deployment management, whose purpose is to move new or changed components to live or test environments.
C. Making new and changed assets available for useThis relates more to release management and deployment management — getting releases into use and making them available to customers and users.
D. Providing information on how assets are configured and the relationships between themThis is the core of service configuration management, which focuses on configuration items, their attributes, and relationships in configuration records (often stored in a CMDB or CMIS).
Therefore, B is correct because it reflects the core decision-support and lifecycle focus of IT asset management.
References (ITIL 4 Foundation):
ITIL® Foundation: ITIL 4 Edition – Practice guide overview, IT Asset Management (purpose and definition of IT assets)
ITIL® Foundation: ITIL 4 Edition – Summary of the 15 ITIL practices