Screws come in many different variations. Some screws have threads that are closer together and some that are farther apart. The closer together the threads are, the longer the inclined plane is relative to the length of the screw or bolt, so the greater its mechanical advantage is. Therefore, if the threads are closer together, you need to apply less force to penetrate the wood or other object. The trade-off of this is that A.
more turns of the screw are needed because the distance over which the input force must be applied is greater

B.
more turns of the screw are needed because the distance over which the input force must be applied is lesser

C.
fewer turns of the screw are needed because the distance over which the input force must be applied is greater

D.
fewer turns of the screw are needed because the distance over which the input force must be applied is lesser