Which one of the following river marks the eastern-most boundary of the Himalayas?

Correct option is A

The correct answer is (A) Brahmaputra.

• The Brahmaputra River marks the eastern-most boundary of the Himalayas.
• It flows through the northeastern part of India and is considered a major river of the region.
• The other rivers do not mark the eastern boundary of the Himalayas.
  

Information Booster:

• Ganga flows through northern India but does not mark the eastern boundary of the Himalayas.
• Godavari is located further south and flows through the Deccan Plateau, not the Himalayas.
• Chambal is a tributary of the Yamuna River and is located in central India, far from the eastern Himalayan range.