A colorful dance form where performers dress up as peacocks is:

Ottamthullal
Mayilattam
Kummattikali
Kaikottikali

The correct answer is B) Mayilattam.

Mayilattam is a traditional dance form from Kerala, India. It is a ritualistic dance performed by women in praise of Lord Vishnu. The dancers dress up as peacocks and perform a series of intricate steps and movements. The dance is accompanied by music and singing.

Ottamthullal is a folk dance from Kerala. It is a humorous dance performed by men and women. The dancers dress up in colorful costumes and perform a series of acrobatic stunts. The dance is accompanied by music and singing.

Kummattikali is a folk dance from Kerala. It is a dance performed by women. The dancers dress up in colorful costumes and wear masks. The dance is accompanied by music and singing.

Kaikottikali is a folk dance from Kerala. It is a dance performed by women. The dancers dress up in colorful costumes and hold sticks in their hands. The dance is accompanied by music and singing.