Answer :
The sentence below that is a compound sentence is: "Marco was playing his guitar so Gina went shopping" (Option C)
What is a compound sentence?
A compound sentence is a sentence that is made up of two clauses that are independent but joined together, usually by conjunction.
Thus, the correct option is option C. This is because is bade up of two independent clauses joined by the conjunction "so".
Learn more about compound sentences at;
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