Answer:
Option C is correct. The force of gravity can change the velocity of objects.
Step-by-step explanation
Force of gravity is the force that acts on a body moving downwards. It causes an object to accelerates when such objects fall to the ground.
We know that acceleration is the rate of change of velocity of a body and this velocity measures the speed and direction of motion.
Hence we can conclude that the force of gravity can change the velocity of objects.