A set of concepts and policies for managing it infrastructure, development, and operations is: IT Infrastructure Library (ITIL).
IT Infrastructure Library can be defined as the approach that help to showcase how to effectively and efficiently deliver IT services smoothly.
The main objective of IT infrastructural is to plan and maintain the IT Lifecyle and to effectively manage IT infrastructure, development as well operations.
Therefore the correct option is B.
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The correct question is:
What is a set of concepts and policies for managing IT infrastructure, development, and operations?
A. ISO 27002
B. Control Objectives for Information and related Technology (COBIT)
C. IT Infrastructure Library (ITIL)
D. NIST Cybersecurity Framework (CSF