The correct answer is: A. Kinnaur
The Khepa festival is a traditional festival celebrated in the Kinnaur district of Himachal Pradesh, India. It is a harvest festival that is celebrated in the month of August or September. The festival is dedicated to the god Khepa, who is believed to be the god of agriculture. The main event of the festival is a procession in which people carry idols of Khepa and other gods and goddesses through the streets. The procession is accompanied by music and dancing. The festival is also a time for people to gather with their families and friends and celebrate the harvest.
Option B, Chamba, is incorrect because the Khepa festival is not celebrated in Chamba. The Chamba district is located in the state of Himachal Pradesh, India. The main festival celebrated in Chamba is the Dussehra festival.
Option C, Shimla, is incorrect because the Khepa festival is not celebrated in Shimla. Shimla is the capital of the state of Himachal Pradesh, India. The main festival celebrated in Shimla is the Christmas festival.
Option D, Una, is incorrect because the Khepa festival is not celebrated in Una. Una is a district located in the state of Himachal Pradesh, India. The main festival celebrated in Una is the Baisakhi festival.