Consider the following surfaces: S1: Wet marble floor S2: Dry marble floor S3: Marble floor with oil spread on it S4: Marble floor covered with newspaper Ruhi runs her toy car on all these surfaces by pushing it with the exact same force each time. The car covers distances d1, d2, d3, and d4 on surfaces S1, S2, S3, and S4 respectively. Which of the following options correctly shows the distances covered by the toy car in increasing order?

Assertion (A): The coefficient of static friction is always less than the coefficient of kinetic friction. Reason (R): More force is required to start the motion of an object than to maintain its motion. Select the correct answer:

Consider the following statements regarding friction: A. Friction opposes the relative motion between two surfaces in contact. It acts only on the surface of one body. B. Friction depends on how hard the two surfaces press together. C. Static friction comes into play when we try to move an object at rest. Which of the statements given above are correct?