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？ | 
