Which of the following US federal government laws/regulations was the first to require the development of computer security plan?

Which of the following US federal government laws/regulations was the first to require the
development of computer security plan?

A.
Privacy Act of 1974

B.
Computer Security Act of 1987

C.
Federal Information Resources Management Regulations

D.
Office of Management & Budget Circular A-130

Explanation:
Reference: pg 722 Hansche: Official (ISC)2 Guide to the CISSP Exam