Respuesta :
Answer: A) Chris and Molly were delighted to see the whole family gathered in the living room; the group was waiting to congratulate the couple.
Explanation: One of the most common uses of a semicolon is to join two independent clauses without using a conjunction like "and." This two independent clauses must be closely related between them (usually one of them gives an explanation for the other one). From the given options, the sentences that uses semicolons correctly is the corresponding to option A, because it is used to join the independent clauses "Chris and Molly were delighted to see the whole family gathered in the living room" and "the group was waiting to congratulate the couple."