Correct Answer: Dihang

Solution : The correct answer is Dihang .

The Brahmaputra River, one of Asia's major rivers and the ninth largest globally by discharge, flows through Arunachal Pradesh, India. In the mountainous terrains, it is referred to as Siang, while in the plains of Arunachal Pradesh, it adopts the name Dihang. This river holds great significance as it traverses through various regions, eventually becoming a vital watercourse in the Indian subcontinent.