单选题
[填句补文]Arms. How you hold your arms shows how open and receptive you are to people you meet. If you keep your arms to the sides of your body or behind your back， this suggests you are not afraid of taking on whatever comes your way. ________. If someone upsets you， just cross your arms to show you‘re unhappy！
A.Outgoing people generally use their arms with big movements， while quieter people keep them close to their bodies.
B.If you ale feeling down， you normally don‘t sit straight， with your shoulders inwards.
C.However， it will probably still be noticed， and people will know you‘re not pleased.
D.If you are pleased， you usually open your eyes wide and people can notice this.
正确答案：A
答案解析：本题可以采用线索词来定位。空格处的前后两个句子都是对arms在具体情况下具体动作的描述。那么用以补充的句子也应是如此，即选项A开朗的人和沉默寡言的人手臂的动作，符合条件。