Answer:
C). Two simple sentences are turned into a compound sentence.
Step-by-step explanation:
Compound sentences are demonstrated as the sentence that consists of more than one independent clauses and primarily function to present two related ideas coherently and make the ideas more convincing.
In the given sentence, the revision combines the two independent clauses conveying complete thoughts into a compound sentence. It assists in relating the two ideas and presenting these two accomplished thoughts together as a coherent whole which makes it more engaging and persuasive. Thus, option C is the correct answer.