For Each of the Following Forces, the Accompanying Change Produces

For each of the following forces, the accompanying change produces a change in the direction (as measured in a rectangular coordinate system) of the force, except for the

A) restoring force of a stretched spring if the direction of the displacement from equilibrium changes.
B) kinetic frictional force, if the direction of the velocity changes.
C) centripetal force, as the object moves along its circular path.
D) gravitational force, as the object moves along its parabolic path.