Correct option is A
Aryabhatta was the first satellite built by India, named after the famous ancient Indian mathematician and astronomer. It was launched on April 19, 1975, by the Soviet Union using the Kosmos-3M launch vehicle from the Baikonur Cosmodrome in Kazakhstan. The primary objective of the Aryabhatta satellite was to conduct experiments in X-ray astronomy, solar physics, and aeronomy. The successful launch of Aryabhatta marked a significant milestone for India in space exploration.