Why does "banking" or (tilting) a turning road create centripetal force?

Question

A) Because banking the corner keeps car from going too fast.

B) Because the angle of the roadway creates a centripetal force.

C) Because the angle of the roadway helps cars counteract friction.

D) Because the angle of the roadway creates a centrifugal force.

Answer 1

angle pushes car toward center, centripetal

Answer 2

None of the answers are the reason for centripetal force. The centripetal force is caused by the turning of the car on the curve (ie, change of direction). The banking does help with staying on the road, as it allows gravity to assist friction down the hill, so in that sense, answer B is the best answer.