Complete the following sentence.
a is used to join two related independent clauses that are not joined by a coordinating conjunction.
period
colon
comma
semicolon

semicolon

Explanation:

Compound sentences consist of two independent clauses which can stand on their own and have related ideas. Therefore, both clauses can be joined either by a comma followed by a coordinating conjunction, or by a semicolon.

The rest of the options are incorrect because a period does not join clauses - it separates sentences; a colon can join two independent clauses when the first one introduces a quotation, an example or a list; and a comma alone does not divide independent clauses.

- "a.) it includes letters and books gathered over 1200 years, and consists of two parts.

- most of the new testament is letters from paul to the different churches, and since there's a new testament that means there is an old testament. "

a. is the correct answer