Rajaraja I, considered the most powerful Chola ruler, became king in ________ .

985

The correct answer is Option 4- 985

Rajaraja I, considered the most powerful Chola ruler, became king in 985. He ascended to the throne after the death of his father, Sundara Chola.

Rajaraja I was a brilliant military commander and a skilled administrator. He expanded the Chola empire to include most of southern India and parts of Sri Lanka. He also introduced a number of reforms, including a new system of land revenue administration and a new system of local government.

Rajaraja I was also a great patron of the arts and culture. He built many temples and forts, including the famous Brihadeeswarar Temple at Thanjavur. He also supported many artists, poets, and scholars.

Rajaraja I's reign is considered to be the golden age of the Chola dynasty. He was a great ruler who made the Chola empire one of the most powerful kingdoms in India.