The correct answer is: A. Pala
The Pala Empire was a Hindu empire that ruled over much of eastern India from the 8th to the 12th centuries. The Palas were patrons of art and architecture, and many of their buildings are still standing today. The large hall with 80 pillars in Kumhrar is one of the most famous examples of Pala architecture.
The Palas were a dynasty of kings who ruled over Bengal and Bihar in eastern India from the 8th to the 12th centuries. They were a Hindu dynasty, and their rule was marked by a revival of Hindu culture and learning. The Palas were also patrons of art and architecture, and many of their buildings are still standing today.
The large hall with 80 pillars in Kumhrar is one of the most famous examples of Pala architecture. It is a rectangular hall with a central nave and two side aisles. The hall is supported by 80 pillars, which are arranged in a square grid. The pillars are made of sandstone, and they are decorated with intricate carvings.
The hall is believed to have been built in the 10th century, during the reign of the Pala king Mahipala I. It is thought to have been used as a temple or a monastery. The hall is now in a state of disrepair, but it is still an impressive example of Pala architecture.
The other options are incorrect because they do not correspond to the time period of the Pala Empire. The Mauryan Empire was a Hindu empire that ruled over much of northern India from the 4th to the 2nd centuries BCE. The Post Mauryan period was a time of political instability in India, following the collapse of the Mauryan Empire. The Mughal Empire was a Muslim empire that ruled over much of India from the 16th to the 18th centuries.