All of the Concepts Below Should Be Emphasized When Teaching

All of the concepts below should be emphasized when teaching balancing except that

A) it is easier to balance over a wide base of support,than a narrow one.
B) for stationary balances,the center of gravity should be aligned over the base of support.
C) for dynamic balances,movements cover space.
D) extensions to one side of the body beyond the base of support necessitate extensions in the opposite direction.
E) All answers are important teaching concepts.