He proved himself a true gentleman and the beauty of his ______ was seen at its best when he worked with others.
A.temperB.appearanceC.talentD.character在线课程D
character特性，性格，品质，句意为“他证实了自己是一个真正的绅士。当他和别人一起工作时他的美好品质最为常见”。temper脾气；appearance外表；talent天才，才能。