The correct answer is A. An adjacent area of the ocean where all of the rights of a coastal state prevail.
Step-by-step explanation
The territorial sea is the area of the ocean in which the State can exercise its sovereignty, as established in the United Nations Convention on the Rights of the Sea in 1982. The sea is considered to be a continental sea within a range of twelve nautical miles from the coast into the sea. Because it relates to the sea, this is a right that only coastal countries have regardless of the continent in which they are. So, the correct answer is A. An adjacent area of the ocean where all of the rights of a coastal state prevail.