Correct option is D
India’s first National Centre for Marine Biodiversity (NCMB) is located in Jamnagar, Gujarat. This center focuses on the study and conservation of marine biodiversity along the Indian coastline, particularly in the Gulf of Kutch region. Jamnagar is known for its rich marine ecosystem, including coral reefs, mangroves, and various species of marine life, making it an ideal location for such a research and conservation center.