Which of the following explanations accounts for why the Plateau of Tibet is a desert?

AThe winds from the Indian Ocean encounter the Himalayas and dump their moisture on the windward side, leaving drier air to descend on Tibet.

BThe winds from China encounter the Himalayas and dump their moisture on Tibet.

CTe winds from China encounter the Himalayas and dump their moisture on India, not Tibet.

DThe winds from the Indian Ocean encounter the Himalayas and dump their moisture on Tibet.