Question

this geographic feature separates china and india
hindu kush mtns
himalayan mtns
ganges river
indian ocean

Explanation:

The Himalayan Mountains form a natural boundary between China and India. The Hindu - Kush Mountains are to the west, the Ganges River is within India, and the Indian Ocean is to the south of India and not a separating feature between China and India.

Answer:

B. Himalayan Mtns