Which of the following is geographically closest to Great Nicobar ?

Sumatra is the closest landmass to Great Nicobar, with the distance between Indira Point and the northern tip of Sumatra (Aceh province) being approximately 145 kilometers. Sri Lanka is the most tempting wrong option due to its proximity to the Indian mainland, but it is located over 1,000 kilometers away from Great Nicobar. This question tests the core concept of spatial orientation and the relative location of India’s island territories in relation to Southeast Asian maritime neighbors.