Answer:
Your answer would be C.
Step-by-step explanation:
C is a run-on sentence. A run-on sentence occurs when two or more independent clauses are not joined correctly. An independent clause is a group of words that can stand alone as a sentence, as in give your shirt.
There are two types of run-on sentences: fused sentences and comma splices. The first ones occur when independent clauses run together with no punctuation marks or coordinating conjunctions to separate them, just as C shows. On the other hand, comma splices occur when two or more independent clauses are joined only by a comma. As it has been said, C is a fused sentence. You can fix this by adding a comma and a coordinating conjunction (D), by adding a semicolon to separate the independent clauses (A), or by separating the independent clauses into sentences (E).