The correct answer is Option 3.The Ten Degree Channel It is a channel that is split in the Bay of Bengal between The Andaman Islands and the Nicobar Islands. The two island sets together makeup Andaman and Nicobar Islands.Ten Degree Channel is the channel that separates Little Andaman and Car Nicobar. Hence, Option 3 is correct.The Channel is approximately 150 km wide, running essentially along with an east-west orientation. It is so named as it lies on the 10° line of latitude, north of the equator.The ten-degree channel is 150 km wide from north to south and 10 km long from east to west.Important PointsAndaman and Nicobar IslandsIt is a union territory of India consisting of 572 islands.It was earlier known as Emerald Island.Barren Island, located in the Nicobar Islands, is the only active volcano in India.The important mountain peaks in Andaman and Nicobar Islands are:Saddle Peak (North Andaman)Mount Diavolo (Middle Andaman)Mount Koyob (South Andaman)Mount Thuyler (Great Nicobar)Additional InformationNine Degree Channel separates the island of Minicoy from the main Lakshadweep archipelago.Eight Degree Channel separates the islands of Minicoy and Maldives.Hudson strait connects the Gulf of Hudson & Atlantic Ocean.Palk Strait connects Palk Bay & the Bay of Bengal.Duncan Passage separates Rutland Island (part of Great Andaman) and Little Andaman.