A Jogger Runs Halfway Around a Circular Path with a Radius

Multiple Choice

A jogger runs halfway around a circular path with a radius of 50 m.What,respectively,are the magnitude of the displacement and the distance jogged?
​

A) 50 m,157 m
B) 100 m,157 m
C) 0 m,314 m
D) 100 m,314 m
E) ​50 m,314 m