The Stride of a Horse Depends Somewhat on the Pendulum-Like

Multiple Choice

The stride of a horse depends somewhat on the pendulum-like swing of its legs.This stride would be higher in frequency if more of the mass in its legs were concentrated

A) in the upper part,nearer the horse's body.
B) towards its feet.
C) halfway up its legs.
D) uniformly all along its legs.
E) none of these