If * is a binary operation in A, then: A. A is closed under * B. A is not closed under * C. A is not closed under + D. A is closed under – 0 0 votes Article Rating Subscribe Login Notify of new follow-up comments new replies to my comments Label {} [+] Name* Email* Label {} [+] Name* Email* 0 Comments Oldest Newest Most Voted Inline Feedbacks View all comments