need HELP!!

which of the following exhibits parabolic motion

a. stone thrown into a lake
b. space shuttle orbiting Earth
c. leaf falling from a tree
d. train moving along a flat track

which of the following does NOT exhibits parabolic motion

a. frog jumpping from land into water
b. basketball thrown to a hoop
c. flat piece of paper released from a window
d. baseball thrown to home plate

please help me :)

3 answers

a, c

Think that out, and why.
space shuttle
i need help