(2013·河南豫西五校高三质检)—I prefer western food. It's a kind of healthy food.

—________ But western food is said to be high in sugar and fat, such as hamburgers and fries.

A．Is that right?

B．How do you know that?

C．Do you really think so?

D．Who told you that?

重要的项目干系人质疑项目基准的有效性，经过长时间讨论，仍然无法达成一致。项目经理应该如何做？（） 

A.核实计划过程的输入数据

B.确认项目现阶段的基准

C.评估新情况

D.在之后的阶段采用新的输入