Analysis of test questions: South Asia has a tropical monsoon climate, and winter is a northeast wind from Eurasia, which is relatively dry. In summer, due to the warm and humid air flow in the Indian Ocean, there is more precipitation. So this question chooses option B.
Comments: Most parts of India are located in the tropics, with high temperatures all year round. Winter is controlled by the northeast monsoon from Asia and Europe, and precipitation is scarce. Summer is controlled by the southwest monsoon of the Indian Ocean, with abundant precipitation. Monsoon climate is easy to cause floods and droughts. The summer monsoon comes early and goes late, and the wind is strong, which is easy to cause floods; Summer monsoon comes late and goes early, and the wind is insufficient, which is easy to cause drought.