How does the Himalaya affect India’s climate?

Correct answer: It blocks cold winds

The correct answer is A, it blocks cold winds. The Himalayan mountain system forms a high physical barrier along India’s northern side. In winter, it restricts the direct southward movement of very cold continental air masses from Central Asia, helping much of northern India remain less severely cold than it otherwise would. The mountains also force moisture-bearing monsoon winds to rise, cool and condense, producing precipitation on suitable slopes and supporting the major perennial river systems fed by snow and glaciers. Thus the Himalaya influences both temperature and rainfall, although the option given focuses on its barrier role. It does not dry all seas, create only hot deserts, or reverse river flow. Hence option A is the best and unambiguous answer.