The coastal Karnataka dance form known for its tiger costumes:

Kamsale
Chhau
Pilivesha
Theyyam

The correct answer is C. Pilivesha.

Pilivesha is a dance form performed in the coastal Karnataka region of India. It is known for its elaborate tiger costumes, which are made from wood, cloth, and metal. The dancers wear these costumes and perform a series of acrobatic feats, while also reciting verses from the Hindu epics.

Kamsale is a drum dance performed in the northern Karnataka region of India. The dancers use a large drum called a kamsale to accompany their movements.

Chhau is a dance form performed in the eastern states of India. It is known for its intricate masks and costumes.

Theyyam is a dance form performed in the northern Kerala region of India. It is known for its elaborate costumes and masks, which are often made from wood and cloth. The dancers perform a series of acrobatic feats, while also reciting verses from the Hindu epics.