Task: Question Answering
Input (English): Which statement best explains why a car that is rolling on a level surface will eventually come to a stop?  
 (A) Frictional forces oppose the motion of the car. (B) Forward motion slowly runs out as energy is expended. (C) The natural state of an object is to be at rest. (D) Inertia acting on an object will dissipate.
Output (English): A