Answer: The right answer is the B) It's 5:07 on Saturday afternoon, and you're on your way home from the water park.
Explanation: A compound sentence links or joins two or more sentences together by means of a semi-colon or a coordinating conjunction. Each sentence or clause has a subject and a verb. In the example, the two independent clauses are 1) "It's 5:07 on Saturday afternoon" and 2) "you're on your way home from the water park." Each sentence has a subject and a verb ("it's" and "you're") and they are connected by the conjunction "and." They both have the same importance and they are related.