— Bad luck. They didn’t offer the job to me.— You’ve been well prepared for the interview

问题补充：

— Bad luck. They didn’t offer the job to me.

— You’ve been well prepared for the interview.

A. So what?

B. What if?

C. How come?

D. What about?

答案：

A. So what?

B. What if?

(答案→)C. How come?

D. What about?

解析：情景交际。. So what? 那又怎样; What if?假使……将会怎样;How come?怎么会……那样；What about?……怎么样？句意：真倒霉，他们不给我这个工作。——怎么会那样？你为这次面试准备的很好啊！故选C。