Thousands of runners come to the Boston Marathon to run in its famous event each year. The Boston Marathon course is 46,145 yards long. What is the best estimate of the length of the course in feet?

(4 x 10^4) over (6 x 10^6) x (3 x 10^-2

Responses
A 2 x 10^4
B 2 x 10^6
C 2 x 10^5
D 2 x 10^-4