GAUSS8 2017 Problem 9

Tian measured her steps and found that it took her 625 steps to walk 500\:m. If she walks 10\:000 steps at this same rate, what distance will she walk?

Answer Choices
A. 6.4\:km
B. 6.25\:km
C. 7.5\:km
D. 8\:km
E. 7.2\:km