Complete question is not given, so i have attached it.
Answer:
Option A: B only
Step-by-step explanation:
Looking at the image given, we see that the car is going down a ramp.
Now, for a y moving body going down a ramp, there are 3 forces acting on that body and they are;
Gravity, friction and the normal force.
However, the force of gravity is greater than the other two and is thus what is responsible for making the body slide down the ramp which in this case slides down to point P.
Now, from the options given, the correct answer is Earth's gravity.
So only statement B is correct.