24. In which sentence are commas used correctly? A. The local pizzeria owner who is a close friend, decided to close his business after forty years. B. C. D. The local pizzeria owner, who is a close friend decided to close his business after forty years. The local pizzeria owner, who is a close friend, decided to close his business after forty years. The local pizzeria owner who is a close friend, decided to close his business, after forty years.