Correct Option: D

Gujarat, in the northwestern region of India, has the longest coastline, covering more than 1,600 km. It accounts for 22% of total coastline of the country. Its coast is bordered by the Arabian Sea and the Gulfs of Khambat and Kachchh. Its coastline nurtures a diversity of habitats, especially mangroves, salt marshes, coral reefs, wetlands, and seagrasses.