Correct Answer: B
Explanation:
There are several acceptable ways to separate independent clauses, but simply using a single comma by itself is not one of them. To do so is to make an error known as the comma splice. The sentence above contains such a splice, and it should be corrected. The options to make this correction would be to add a coordinating conjunction after the comma, replace the comma with a period, or replace the comma with a semicolon.