Which one of the following islands is coral in origin?

Lakshadweep Islands are coral islands situated in the Arabian Sea, off the coast of India. The islands are made up of coral reefs created by marine creatures over a period of thousands of years. The islands are primarily made up of coral sand and limestone, making them low-lying and vulnerable. Lakshadweep is comprised of small atolls, reefs, and lagoons, which are biologically diverse. The blue waters, coral reefs, and lagoons encircle the islands, which are ideal for fishing and tourism. Unlike other islands, Lakshadweep is not volcanic or continental, as it lacks a rocky base and is completely coral in origin.