10.   The data collected by weather airplanes that fly into the heart of a hurricane are useful mainly for gauging the storm’s structure and strength, not for the speed and the path of their movement.  

(A) not for the speed and the path of their movement

(B) not for the speed and path of its movement

(C) not the speed and path of its movement

(D) and not the speed and path of their movements（C）

(E) and not for the speed and the path of its movements

为什么啊？ 我选的A。

觉得for应该与前面对称啊？还有就是主语data为什么用are啊？

应该选Ｃ啊～～gauging的宾语是the storm’s structure and strength，后面的 the speed and path of its movement都是gauging的宾语啊，所以不应该在这些词前面加for形成不平行～～