The correct answer is: A. Jaystambh Varman.
The Shakti Devi Temple of Chattrari is a Hindu temple dedicated to the goddess Shakti. It is located in the village of Chattrari, in the district of Chamba, in the Indian state of Himachal Pradesh. The temple was built by the Chamba king Jaystambh Varman in the 10th century. It is a fine example of Chamba architecture. The temple is built on a high plinth and has a square plan. The main shrine is surrounded by a number of smaller shrines. The temple is decorated with intricate carvings and sculptures. The Shakti Devi Temple of Chattrari is an important pilgrimage site for Hindus. It is also a popular tourist destination.
The other options are incorrect because:
- Meru Varman was a king of the Chamba dynasty who ruled in the 8th century. He is not known to have built any temples.
- Sahil Varman was a king of the Chamba dynasty who ruled in the 9th century. He is not known to have built any temples.
- Rupesh Varman was a king of the Chamba dynasty who ruled in the 11th century. He is not known to have built any temples.