Correct option (b) Western Disturbances
Explanation:
Fairly widespread to widespread rainfall/snowfall is likely over Jammu & Kashmir and Himachal Pradesh owing to the western disturbances.
A Western Disturbance is an extratropical storm originating in the Mediterranean region that brings sudden winter rain to the north-western parts of the Indian subcontinent.
The moisture in these storms usually originates over the Mediterranean Sea and the Atlantic Ocean.
