A virtual memory system uses the first-in-first-out (FIFO) page replacement policy and allocates a fixed number of frames to a process.
Assertion A: Increasing the number of page frames allocated to a process sometimes increases the page fault rate.
Reason R: Some programs do not exhibit locality of reference.

1. A(A) Both A and R are true and R is the correct explanation of A
2. B(B) Both A and R are true but R is NOT the correct explanation of A
3. C(C) A is true but R is false
4. D(D) A is false but R is true

Pick an option to check yourself, or open the answer below.