要表示出一个人一周的体温变化情况，应该绘制______统计图．

Which of the following would be best to help prepare a preschool-aged child for an injection（）

A. Having an older child explain that shots do not hurt.

B. Helping the child to imagine she is in a different place.

C. Giving the child a play syringe and a bandage to give a doll injections.

D. Giving the child a pounding board to encourage expressions of anger.