Question

Which of the following is an independent clause? Early American writers were mostly men. Although early American writers were mostly men.

Answer 1

(A). Early American writers were mostly men

Step-by-step explanation:

Answer 2

An independent clause is a clause that can stand on its own - it doesn't have to be a part of a larger sentence. Having this in mind, the independent clause here is Early American writers were mostly men.
The other choice is a dependent/subordinate clause.