Which animal in Haryana is also known as black gold?

The correct answer is C. Buffalo.

Buffalo are also known as black gold because of their importance to the economy of Haryana. They are used for milk, meat, and labor. Their dung is also used as fertilizer.

Goat is not the correct answer because it is not as important to the economy of Haryana as buffalo.

Horse is not the correct answer because it is not as common in Haryana as buffalo.

Elephant is not the correct answer because it is not native to Haryana.