The strait that separates the North Andaman islands from the group of islands of Myanmar is...

Option 1: Andaman Strait -> Not a recognized strait name separating North Andaman from Myanmar islands.

Option 2: Coco Strait -> Separates the Coco Islands (belonging to Myanmar) from the North Andaman Islands (India).

Option 3: Preparis Strait -> Located between Preparis Island and the Andaman archipelago, but not specifically between North Andaman and Myanmar's island groups.

Option 4: Cabot Strait -> Located between Newfoundland and Cape Breton Island in Canada, not in the Andaman region.

Hence, Option 2: Coco Strait -> The Coco Strait forms the maritime boundary between India's North Andaman Islands and Myanmar's Coco Islands in the Bay of Bengal. This strait is an important geographical marker in the Andaman Sea region. -> correct