The Hoysala temple known for its unique star-shaped platform:

Chennakesava Temple, Belur
Hoysaleswara Temple, Halebidu
Virupaksha Temple, Hampi
Keshava Temple, Somnathpura

The correct answer is: A) Chennakesava Temple, Belur

The Chennakesava Temple is a 12th-century Hindu temple located in Belur, Karnataka, India. It is one of the finest examples of Hoysala architecture. The temple is dedicated to Vishnu, and is known for its intricate carvings and sculptures. The temple is built on a star-shaped platform, which is unique among Hoysala temples.

The Hoysaleswara Temple is another 12th-century Hindu temple located in Halebidu, Karnataka, India. It is also dedicated to Vishnu, and is known for its intricate carvings and sculptures. However, the temple is not built on a star-shaped platform.

The Virupaksha Temple is a 16th-century Hindu temple located in Hampi, Karnataka, India. It is one of the largest and most important temples in Hampi. The temple is dedicated to Shiva, and is known for its intricate carvings and sculptures. However, the temple is not built on a star-shaped platform.

The Keshava Temple is a 13th-century Hindu temple located in Somnathpura, Karnataka, India. It is dedicated to Vishnu, and is known for its intricate carvings and sculptures. However, the temple is not built on a star-shaped platform.