The correct answer is (a). The Gulf of Cambay/Khambhat is a shallow, semi-enclosed bay on the west coast of India. It is a relatively warm and nutrient-rich environment, but it is not home to any coral reefs. This is likely due to the fact that the bay is too shallow and the water is too turbid for coral to thrive.
The Gulf of Mannar is a shallow, semi-enclosed bay on the east coast of India. It is home to the largest contiguous barrier reef system in the Indian Ocean, as well as a number of other coral reefs. The reefs in the Gulf of Mannar are a popular tourist destination and are also important for fisheries and coastal protection.
Lakshadweep is an archipelago of islands in the Arabian Sea. The islands are home to a number of coral reefs, which are a popular tourist destination. The reefs in Lakshadweep are also important for fisheries and coastal protection.
The Andaman and Nicobar Islands are an archipelago of islands in the Bay of Bengal. The islands are home to a number of coral reefs, which are a popular tourist destination. The reefs in the Andaman and Nicobar Islands are also important for fisheries and coastal protection.