River Ganga originates from the glacier

Explanation:
The Bhagirathi River is the source river of the Ganga River. It originates from Gaumukh, that is located at the base of Gangotri and Khatilang glaciers in Uttarakhand.
The Ganga is later joined by many tributaries from the Himalayas such as the Yamuna, the Ghaghara, the Gandak and the Kosi.


Final Answer:
Hence, the correct answer is option B. i.e., Gangotri. River Ganga originates from the glacier Gangotri.