Choose the correct alternative from the following : - Assertion (A) : Unpolished rice should be eaten.
Reason (R) : Polished rice lacks Vitamin B.

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

The husk of unpolished rice contains Vitamin B1, deficiency of which causes the disease Beri-beri. So, rice should be eaten unpolished.