（）别人向你打招呼Hello!你应说

请选择ABC+M6Y0z别人向你打招呼 Hello!你应说_1Y'N+_._1}/K-T9U

A.What's your name?1Y'N+_._1}/K-T9U

B.Hello!1Y'N+_._1}/K-T9U

C.Thank you.1Y'N+_._1}/K-T9U