(a) Devaraya I
(c) Vira Vijaya
The correct answer is (a): Devaraya I.
Devaraya I was the third ruler of the Vijayanagara Empire. He reigned from 1406 to 1422. Devaraya I was a great warrior and statesman. He expanded the Vijayanagara Empire and made it one of the most powerful empires in South India.
Devaraya I also built a large dam across the Tungabhadra River and a canal-cum-aqueduct several kilometres long from the river to the capital city. This dam and canal-cum-aqueduct were great feats of engineering. They provided water for irrigation and drinking water for the people of the capital city.
Devaraya I was a great ruler. He was a warrior, statesman, and builder. He is considered to be one of the greatest rulers of the Vijayanagara Empire.