Which of the following sentences uses semicolons correctly? a. chris and molly were delighted to see the whole family gathered in the living room; the group was waiting to congratulate the couple. b. chris and molly loved spending their weekends at the beach during the summer; where they met some of their friends occasionally. c. molly wasn't expecting chris to stay up working so late; she could hear her favorite song playing on the radio. d. while chris was preparing molly's favorite meal; she decided to take out the trash, repair the broken shelf, and water the plants.