Which of the following describes a situation in which the total distance a tennis player travels is 0 meter from his starting point?

A The player runs 9 meters forward and then runs 0 meters in the opposite direction.

B The player runs 5 meters forward and then runs 6 meters in the opposite direction.

C The player runs 7 meters forward and then runs 7 meters in the opposite direction.

D The player runs 6 meters forward and then runs 5 meters in the opposite direction.