make oxygen. release energy. digest nutrients. cause movement.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: There are different kinds of muscles in the human body. Each muscle is formed from a group of cells that works together. The main function of a group of muscle cells is to
Possibilities:
- make oxygen.
- release energy.
- digest nutrients.
- cause movement.

cause movement.