Coach Keys is doing an activity with her fourth-grade physical education students. She has each student pair up with a peer to complete the activity. First student A will stand with their feet together, and student B will attempt to gently push student A off balance. Then student A will move their feet shoulders-width apart and student B will again lightly touch their partner in the same manner. Students then will swap places and repeat the activity. At the end of the activity Coach Keys leads a discussion about in which position it was easier to maintain balance.This activity is teaching which concept below?A. Changing the speed of a movement alters stability.B. Balance is improved if you widen your base.C. Raising your center of gravity increases balance.D. Students can control their own force.

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