Answer :
It mostly depends the time amount they have to run. But I am going to take my best guess and say Sarah has the best form while running, because studies show that if you run with your hands on chest, it shows better running process.
The best form of running is Sarah runs with her hands on her chest. The correct option is C.
What is running?
Running is an act or exercise that follows moving your feet very fast and going straight or according to the ground. It is the best cardio and weight loss exercise.
Running with a hand on the chest is the best form, it increases the speed of running too.
Thus, the correct option is C, Sarah runs with her hands on her chest.
Learn more about running, here:
https://brainly.com/question/15573179
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