Who among the following is known for his work on medicine during the Gupta period?

Susrutha is the correct answer because he is one of the most celebrated figures in ancient Indian medicine and surgery. While there is historical debate regarding the exact timeline of the original Susrutha, the Susrutha Samhita, a foundational text on surgery and medicine, was redacted and significantly popularized during the Gupta period. He is often referred to as the Father of Indian Surgery. The other options are incorrect for the following reasons: Saumilla and Sudraka were renowned playwrights and figures in Sanskrit literature, and Shaunaka was an ancient Vedic sage and grammarian primarily associated with the Rig Veda. Therefore, among the choices provided, Susrutha is the only one associated with medical work during that era.