The correct answer is: C. Burhi Gandak
The Tirhut Canal is a canal in India that is part of the Kosi Project. It was constructed in the early 19th century to irrigate the Tirhut region of Bihar. The canal is about 200 kilometers long and takes water from the Burhi Gandak River.
The Burhi Gandak River is a tributary of the Ganges River. It originates in the Himalayas and flows through the states of Uttarakhand, Uttar Pradesh, and Bihar. The river is about 500 kilometers long and is a major source of irrigation and drinking water for millions of people.
The other options are incorrect because they are not rivers that the Tirhut Canal takes water from. The Gandak River is a tributary of the Ganges River. The Kamla River is a tributary of the Chambal River. The Kosi River is a tributary of the Ganges River.
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