Option c is the correct answer. Rajendra-1 was the son and successor of Rajaraja Chola I, who ruled the Chola empire from 1014 to 1044 CE. He was one of the greatest and most adventurous rulers of the Chola dynasty, who expanded his empire to its maximum extent. He conquered the northern parts of India, including Bengal, Bihar, and Odisha, and assumed the title of Gangaikonda Chola, meaning "the Chola who conquered the Ganges". He also sent naval expeditions to Southeast Asia, and subdued the kingdoms of Sri Lanka, Maldives, Sumatra, Java, etc. He built a new capital at Gangaikonda Cholapuram, where he erected a magnificent temple dedicated to Lord Shiva.