By what name is the Brahmaputra known in Tibet?

Correct answer: Tsangpo

The direct answer is option A, Tsangpo, also written as Tsangpo or Yarlung Tsangpo. The Brahmaputra begins in the Tibetan region and is known there by this name. As it flows through different regions, its name changes: in Tibet it is commonly called Yarlung Tsangpo, in Arunachal Pradesh it is known as the Siang or Dihang, and after entering Assam it is called the Brahmaputra. Option A is correct because Tsangpo is the Tibetan name asked for. Option B, Bhagirathi, is a headstream of the Ganga in Uttarakhand, not the Tibetan name of the Brahmaputra. Option C, Satluj, is another major Himalayan river that also rises in Tibet, but it is a separate river. Option D, Damodar, is an eastern Indian river associated mainly with Jharkhand and West Bengal. The important reasoning is to connect the river’s location and changing names, not to choose any river merely because it is Himalayan. Memory cue: Tibet—Tsangpo; Arunachal—Siang or Dihang; Assam—Brahmaputra.