13. (1 point) Two boxes are traveling with velocities shown in the picture below. Box A has a mass of 2 kg and Box B has a mass of 4 kg. A 10m/s B 2.5m/s Frictionless surface Box A hits box B. They do not stick together. Which of the following statements about the effects of the collision is true? a. The momentum of the system after the collision is equal to the momentum of the system before the collision. b. Before the collision, Mass A and Mass B will have the same momentum. c. The momentum of Mass A is equal to the momentum of Mass B after the collision. d. The total momentum after the collision will be 0