Read Assertion (A) and Reason (R) and give the correct answer:
Assertion (A): Judges must follow authoritative precedents.
Reason (R): Authoritative precedents derive their authority from basic postulates of the legal system itself.

A. Both A and R are true, and R is the correct explanation of A

B. Both A and R are true, but R is not the correct explanation of A

C. A is true, but R is false

D. A is false, but R is true

Answer: Option A