Read the following sentences carefully. Which of the following would be the best way to write it?

A Most of the racers have the simple goal to just finish the race which is an accomplishment by itself.

B Most of the racers have the simple goal to just finish the race which is, an accomplishment by itself.

C Most of the racers have the simple goal, to just finish the race, which is an accomplishment by itself.

D Most of the racers have the simple goal to just finish the race, which is an accomplishment by itself.