The correct answer is: A) Holkars.
The Holkars were a Maratha clan that established their rule over Indore in the 18th century. They were originally from the Deccan Plateau in India, and they came to power under the leadership of Malhar Rao Holkar. Malhar Rao was a general in the Maratha army, and he played a key role in the Maratha victory over the Mughal Empire in the Battle of Panipat in 1761. After the battle, Malhar Rao established his own kingdom in Indore, and he ruled over the city until his death in 1766.
The Holkars were a powerful and influential clan, and they played a major role in the history of India. They were known for their military prowess, and they were also patrons of the arts and literature. The Holkars ruled over Indore until the early 19th century, when they were overthrown by the British East India Company.
The other options are incorrect. The Scindias were a Maratha clan that established their rule over Gwalior. The Bhonsles were a Maratha clan that established their rule over Nagpur. The Gaekwads were a Maratha clan that established their rule over Baroda.