Which of the following regions was never a separate colony in the United States?

Maine is the correct answer because it was never a separate colony in the traditional sense. Initially, the area that is now Maine was part of the larger Massachusetts Bay Colony. It was settled in the early 17th century, but it did not function as an independent colony until after it became a state in 1820.

Connecticut, New Hampshire, and Delaware, on the other hand, were established as separate colonies. Connecticut received its charter in 1662, New Hampshire was granted its own charter in 1679, and Delaware was initially part of the Pennsylvania colony but became its own separate entity in 1704. Each of these regions had a distinct governance and identity separate from other colonies prior to becoming states.