The Vijayanagara ruler known for his patronage of arts and literature:

Vira Narasimha
Bukka Raya I
Krishna Deva Raya
Harihara II

The correct answer is C) Krishna Deva Raya.

Krishna Deva Raya was the most famous and powerful ruler of the Vijayanagara Empire. He was a great patron of arts and literature, and he is credited with ushering in a golden age of culture in the Deccan. He was also a skilled military commander, and he expanded the empire to its greatest extent.

Vira Narasimha was the founder of the Vijayanagara Empire. He was a great warrior, and he led the empire to victory in many battles. However, he was not a patron of arts and literature.

Bukka Raya I was the son of Vira Narasimha. He was a wise and just ruler, and he helped to consolidate the empire. However, he was not a patron of arts and literature.

Harihara II was the grandson of Vira Narasimha. He was a great military commander, and he expanded the empire to its greatest extent. However, he was not a patron of arts and literature.

In conclusion, the Vijayanagara ruler known for his patronage of arts and literature is Krishna Deva Raya.