The question asks about the performing arts covered in the ancient Indian text 'Natya Shastra'.
The Natya Shastra, attributed to Bharata Muni, is a foundational text on Indian performing arts. It provides comprehensive principles and guidelines for various art forms.
The text primarily deals with the following performing arts:
Based on the scope of the Natya Shastra, the performing arts it contains commentaries on are Theatre, Music, and Dance.
Therefore, Option B is the correct choice.