Which famous astronomer and mathematician wrote Aryabhatiya and Surya Sidhanta?

Aryabhatta (476-550 CE) composed the Aryabhatiya, a groundbreaking astronomical treatise that introduced revolutionary concepts like the rotation of Earth and accurate pi calculations. He is definitively associated with the Aryabhatiya. While the Surya Siddhanta is an ancient astronomical text that Aryabhatta referenced and built upon, it was an earlier work revised over centuries rather than written by him. However, among the options, Aryabhatta is clearly correct as the primary author of the Aryabhatiya and is associated with both texts in historical tradition.