Sattriya, recognized as a classical Indian dance form, originated in:

Tribal communities of Assam
The Ahom courts
Vaishnavite monasteries (Sattras)
Folk traditions of Lower Assam

The correct answer is: c) Vaishnavite monasteries (Sattras).

Sattriya is a classical Indian dance form that originated in the Vaishnavite monasteries (Sattras) of Assam. It is a highly stylized dance form that combines elements of music, dance, and drama. The dance is performed to the accompaniment of a variety of instruments, including the ektara, the dhol, and the sarang. The costumes and makeup worn by the dancers are also highly stylized.

Sattriya is a very important part of the Assamese culture. It is performed on a variety of occasions, including religious festivals, weddings, and other special events. The dance is also used to teach the tenets of Vaishnavism.

The following are brief descriptions of each option:

a) Tribal communities of Assam: The tribal communities of Assam have a rich tradition of dance. However, Sattriya is not a tribal dance form. It originated in the Vaishnavite monasteries (Sattras) of Assam.

b) The Ahom courts: The Ahoms were a powerful kingdom that ruled Assam from the 13th to the 18th centuries. They had a rich tradition of dance, but Sattriya is not a dance form that originated in the Ahom courts.

c) Vaishnavite monasteries (Sattras): Sattriya originated in the Vaishnavite monasteries (Sattras) of Assam. The Sattras are religious institutions that were founded by the 15th-century saint Srimanta Sankardeva. Sattriya is a form of dance that is performed in the Sattras as part of religious ceremonies.

d) Folk traditions of Lower Assam: There are many folk traditions of dance in Lower Assam. However, Sattriya is not a folk dance. It is a classical dance form that originated in the Vaishnavite monasteries (Sattras) of Assam.