请选择CBA4l7P+C9{4J,[3r你想提醒对方当心，应该说：8H7S7U:d2^6}:?
A. Look at me.8H7S7U:d2^6}:?
B. Watch out.8H7S7U:d2^6}:?
C. Thank you.8H7S7U:d2^6}:?