Which one of the following situations results in the largestmagnitude torque acting on a rigid object?
(A) A force of magnitude F with a lever arm of ?.
(B) A force of magnitude 2F with a lever arm of 2?.
(C) A force of magnitude 2F with a lever arm of ½?.
(D) A force of magnitude F with a lever arm of ½?.
(E) A force of magnitude 2F with a lever arm of ?.