Nearly ________ movement in the body is the result of muscle contraction.

A. All

B. 50% of all

C. 10% of all

D. None of the above

D?

How do you move? All

It's A (i've taken this exam)

Its A(all)

To find the correct answer, we can eliminate each option one by one.

A. All: This option states that nearly all movement in the body is the result of muscle contraction. While muscle contractions are indeed responsible for a significant amount of movement in the body, there are also other factors involved, such as the movement of fluids and the functioning of organs. Therefore, we can eliminate this option as an overgeneralization.

B. 50% of all: This option suggests that only half of all movement in the body is the result of muscle contraction. This is too low of an estimate since muscle contractions are involved in various bodily activities, including locomotion, organ function, and even small movements like blinking or breathing. Thus, we can eliminate this option.

C. 10% of all: This option implies that only a small fraction of all movement in the body comes from muscle contractions. This is not accurate since muscle contractions play a vital role in numerous activities that require movement. Therefore, we can eliminate this option.

D. None of the above: This is the remaining option when all others have been eliminated. So, if none of the other options are correct, it means that muscle contraction is responsible for nearly all movement in the body. This aligns with our understanding of how muscles function and influence movement. Therefore, the correct answer is D.