etiquette n.
A.THE FORMAL RULES OF PROPER SOCIAL BEHAVIOR
B.GENTLE LASTING LOVE
C.TO CAUSE SB. NO LONGER TO HAVE(WRONG IDEA)
D.THE ACT OF MAKING GENERAL STATEMENT OR FORMING A GENERAL PRINCIPLE, OPINION, ETC.
E.SB. EMPLOYED BY A NEWSPAPER, TELEVISION
正确答案是A