The correct option is B Ajivikas
The Sudama and Lomas Rishi Caves represent the earliest example of rock-cut architecture in India. They belong to the 3rd century, Maurya period. The Sudama Cave was dedicated by the emperor Ashoka to Ajivikas in 261 BC and consists of a circular vaulted chamber with a rectangular mandapa. The Lomas Rishi Cave was carved out of a huge rounded granite rock and has an arch-like shape façade imitating the contemporary timber architecture. The internal surface is highly polished.