Sal trees are found in …………… district of Haryana.

The correct answer is D. Kalesar.

Sal trees are found in the Kalesar National Park in Haryana. The park is located in the district of Yamunanagar and covers an area of about 100 square kilometers. The park is home to a variety of wildlife, including tigers, leopards, elephants, and deer. Sal trees are an important part of the park’s ecosystem and provide food and shelter for many of the animals that live there.

Gurugram, Sonipat, and Rohtak are all districts in Haryana, but they do not have any significant populations of sal trees.