The correct answer is B. Andaman and Nicobar Islands.
Coral reefs are found in tropical and subtropical waters around the world. They are made up of millions of tiny organisms called coral polyps. Coral polyps secrete a hard skeleton made of calcium carbonate, which forms the reef.
The Andaman and Nicobar Islands are a group of islands in the Indian Ocean. They are located about 1,200 kilometers (750 miles) east of the Indian mainland. The islands are home to a diverse range of marine life, including coral reefs.
The Andaman and Nicobar Islands are a popular tourist destination. Visitors can enjoy swimming, snorkeling, diving, and other water sports. The islands are also home to a number of indigenous tribes.
The other options are incorrect. The Himalayan region is a mountainous region in northern India. Uttar Pradesh is a state in northern India. Maharashtra is a state in western India.