The magnificent Hoysala temple with intricate sculptures, a UNESCO World Heritage Site:

Somnathpura
Belur
Halebidu
Hampi

The correct answer is: C) Halebidu

Halebidu is a town in the Hassan district of Karnataka, India. It was the capital of the Hoysala Empire from 1100 to 1300 AD. The town is home to two magnificent Hoysala temples, the Chennakeshava Temple and the Hoysaleswara Temple. Both temples are UNESCO World Heritage Sites.

The Chennakeshava Temple is dedicated to Vishnu. It is one of the finest examples of Hoysala architecture. The temple is built in the Dravidian style and is decorated with intricate sculptures. The temple is also known for its musical pillars, which produce a musical sound when struck.

The Hoysaleswara Temple is dedicated to Shiva. It is also one of the finest examples of Hoysala architecture. The temple is built in the Nagara style and is decorated with intricate sculptures. The temple is also known for its large size and its intricate carvings.

Somnathpura is a village in the Hassan district of Karnataka, India. It is home to the Somnathpur Temple, a UNESCO World Heritage Site. The temple is dedicated to Vishnu and is one of the finest examples of Hoysala architecture. The temple is built in the Dravidian style and is decorated with intricate sculptures.

Hampi is a UNESCO World Heritage Site in the Bellary district of Karnataka, India. It was the capital of the Vijayanagara Empire from 1336 to 1565 AD. Hampi is home to a number of temples, palaces, and other monuments. The ruins of Hampi are spread over an area of 40 square kilometers.

In conclusion, the correct answer is: C) Halebidu.