I hear that you have made a new market plan.-Yes but what puzzles me now is how to

问题补充：

--- I hear that you have made a new market plan.

---Yes, but what puzzles me now is how to the plan.

A. carry out

B. pull out

C. put out

D. work out

答案：

(答案→)A. carry out

B. pull out

C. put out

D. work out

解析：动词短语辨析。A执行；B拔出，抽去，取出；（车，船等）驶出；C熄灭；D想出; 制订出; 产生出；锻炼；句意：现在困扰我的是如何执行这个计划。