When the only force acting on a falling object is gravity, the object is said to be
a. Stationary.
b. Decelerating.
c. In free fall.
d. A projectile.

That's the definition of "free fall".We can never observe free-fall in our daily life on Earth. There's always at least one other force besides gravity acting on a falling body, because it's always falling through air.

   the object is in free fall           cuz  its in space