the division of cells in the plant the release of oxygen from the plant the absorption of carbon dioxide in the stem the transportation of nutrients from the roots
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: As a corn plant ages, its leaves grow. Which process is directly responsible for the growth of these leaves?
Possibilities:
- the division of cells in the plant
- the release of oxygen from the plant
- the absorption of carbon dioxide in the stem
- the transportation of nutrients from the roots

the division of cells in the plant