Question

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.

Answer 1

the object is in free fall
cuz its in space

Answer 2

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.