Jason has been hired to build a circular wading pool Ain his neighbor’s backyard. The rectangular backyard measures 60 feet wide by 50 feet long. Jason’s neighbors want the pool to be as large as possible, with the edge of the pool at least 8 feet from the edge of the backyard all around. How long should the radius of the pool be, in feet?
A. 8
B. 17
C. 22
D. 34
E. 44