Answer: (Detailed Solution Below)
Option B: Both A and R are true but R is NOT the correct explanation of A
Detailed Solution:
The correct answer is “Both A and R are true but R is NOT the correct explanation of A”.
The northern plains of India do receive some precipitation during winter, primarily due to western disturbances.
The Northeast Monsoon, also known as the winter monsoon, is active during the winter months of October to December in India. The northeast monsoon offers a mere 11% contribution to India's annual rainfall, as opposed to the 75% offered by the southwest monsoon.
The northeast monsoon (NEM) is generally limited to south India. It's characterized by northeasterly winds that pick up moisture from the Bay of Bengal and dump it over the following southern states: Tamil Nadu, Andhra Pradesh, Kerala, South Telangana, and Karnataka.