Ask your guardian, they'll tell you
D It’s the only logical answer good luck
1. Cells are the fundamental unit of structure and function in living things.
2. All living things are composed of cells.
3. All cells come from preexisting cells.
Answer: He should of used the heel of his hand instead of using his fist.
Explanation: Using the heel of your hand is better than using your fist while doing a compression because this allows you to apply more pressure.