Two circles that share the same center have radii 10 meters and 20 meters. An aardvark runs along the path shown, starting at A and ending at K. How many meters does the aardvark run?
Answer Choices
A. 10 \pi+20
B. 10 \pi+30
C. 10 \pi+40
D. 20 \pi+20
E. 20 \pi+40