As breanna gets older, how will her batting abilities change?

a. her speed will increase, but her accuracy will stay the same.

b. her speed will stay the same, but her accuracy will improve.

c. batting motions will involve her entire body.

d. batting motions will primarily involve her upper body.

C.Batting motions will involve her entire body.    

Explanation:

As Breanna ages and gets older, the body muscles becomes weak and reduced strength. Body muscles generally tends to loose stability and endurance as one grows older. This affects the body to reduce in the ability of movements and body motions. Also, the bone shrinks and becomes feeble.

Thus a person growing old will have difficulty in body motion and movement.

Hence in the context, as Breanna  is getting older her body muscles will become weak and this affects the batting abilities as it involves her all the body parts.

Therefore the correct option is (C).

answer; i believe the correct answer is (4) flip a coin as each participant arrives,heads indicates assignment to the first group: tails indicates assignment to the second group;