Statement (A): It is necessary to tally current costs with current income in order to find out the correct profit.
Reason (R): LIFO ensures matching of current costs with current income.

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

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

C. A is correct but R is incorrect

D. A is incorrect but R is correct

Answer: Option B