Correct Option: A

The term 'Western Disturbance' is used to describe an extratropical storm, which brings winter rain and sometimes snow to the northwestern parts of the India. When the Western Disturbance moves across northwest India before the onset of monsoon, a temporary advancement of monsoon current appears over the states including Punjab, Uttar Pradesh, Jammu and Kashmir etc. When it passes across north India, it helps to increase monsoon activity over Punjab and Uttar Pradesh.