A common feature of many Mizo festivals is the performance of:

The correct answer is: a) Traditional dances like Cheraw.

Cheraw is a traditional dance of the Mizo people of northeast India. It is a vigorous dance performed by men and women in a circle. The dancers move their arms and legs in a complex pattern, and the dance is often accompanied by music and singing.

Other options are incorrect because:

• Elaborate dramas and plays are not a common feature of Mizo festivals.
• Martial arts demonstrations are not a common feature of Mizo festivals.
• Firewalking rituals are not a common feature of Mizo festivals.