The correct answer is: a) Lushai.
Thalfavang Kut is a festival primarily observed by the Lushai community in Mizoram. It is a harvest festival that is celebrated in the month of November. The festival is a time for thanksgiving and for celebrating the good harvest. It is also a time for family and friends to come together and enjoy each other’s company.
The festival is celebrated with a lot of pomp and show. There are feasts, dances, and music. The people also dress up in their traditional attire. The highlight of the festival is the sacrifice of a pig. The pig is sacrificed to the gods as a token of thanksgiving.
The festival is a time for the people to come together and celebrate their culture and traditions. It is also a time for them to renew their bonds with their community and their ancestors.
The other options are incorrect because they are not the communities that primarily observe Thalfavang Kut. The Hmar, Mara, and Chakma are all ethnic groups that live in Mizoram, but they do not primarily observe Thalfavang Kut.