The correct answer is A. Chamba.
Kalatop Khajjiar Wildlife Sanctuary is a protected area in the Chamba district of Himachal Pradesh, India. It was established in 1974 and covers an area of 140 square kilometers. The sanctuary is home to a variety of wildlife, including snow leopards, leopards, tigers, elephants, and deer. It is also a popular tourist destination, known for its scenic beauty and its opportunities for trekking, camping, and wildlife viewing.
Option B, Kullu, is incorrect because the Kalatop Khajjiar Wildlife Sanctuary is not located in Kullu district.
Option C, Kangra, is incorrect because the Kalatop Khajjiar Wildlife Sanctuary is not located in Kangra district.
Option D, Shimla, is incorrect because the Kalatop Khajjiar Wildlife Sanctuary is not located in Shimla district.