The correct answer is option 2: 100 - 120 days.

The monsoon season in India typically lasts for an average period of 100 to 120 days. The monsoon is a weather pattern characterized by the seasonal reversal of winds, resulting in heavy rains in the region.

Option 1: 80 - 140 days is not the correct answer. Although the monsoon season may occasionally extend up to 140 days in some regions of India, the average duration is generally shorter.

Option 3: 90 - 130 days is not the correct answer. While the monsoon season may occasionally last up to 130 days in certain areas, the average duration is typically shorter.

Option 4: 100 - 140 days is not the correct answer. While the monsoon season may occasionally extend up to 140 days in certain areas, the average duration is generally shorter.