China has started building the Motuo Hydropower Station on which river, aiming to create the world’s largest dam, triggering geopolitical and environmental concerns in India and Bangladesh?

Yarlung Tsangpo 

The correct answer is Option 4: Yarlung Tsangpo River

China has started building the Motuo Hydropower Station on the Yarlung Tsangpo River, aiming to create the world’s largest dam, triggering geopolitical and environmental concerns in India and Bangladesh.