It is needed to change glucose to energy. It is needed to store nutrients. It is needed to repair tissue. It is needed to produce water.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Why is protein an important part of a healthy diet?
Possibilities:
- It is needed to change glucose to energy.
- It is needed to store nutrients.
- It is needed to repair tissue.
- It is needed to produce water.

It is needed to repair tissue.