A. The main purpose of parkour is to keep moving forward by combining various movements—such as the roll, cat leap, precision jump, kong vault, and speed vault—in a fluid fashion. B. The main purpose of parkour is to keep moving forward (by combining various movements such as the roll, cat leap, precision jump, kong vault, and speed vault) in a fluid fashion. C. The main purpose of parkour is to keep moving forward by combining various movements (such as the roll, cat leap, precision jump, kong vault, and speed vault) in a fluid fashion. D. The main purpose of parkour is to keep moving forward by combining various movements, (such as the roll, cat leap, precision jump, kong vault, and speed vault)—in a fluid fashion. Please select the best answer from the choices provided A B C D