Question

the blue arrows on this map are indicating the a mekong river. b huang he river. c yangtze river. d brahmaputra river.

Explanation:

To solve this, we analyze the map (showing South Asia/adjacent regions) and river characteristics. The Brahmaputra River (D) flows in a way that matches typical arrow - indicated directions in such regional maps, while Mekong, Huang He, and Yangtze have different geographic contexts (Mekong in Southeast Asia, Huang He and Yangtze in East Asia, not matching the map’s region as well as Brahmaputra).

Answer:

D. Brahmaputra River