Plants take in oxygen and release sugar. Plants take in sugar and release minerals. Plants take in minerals and release carbon dioxide. Plants take in carbon dioxide and release oxygen.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which is a process that occurs during photosynthesis?
Possibilities:
- Plants take in oxygen and release sugar.
- Plants take in sugar and release minerals.
- Plants take in minerals and release carbon dioxide.
- Plants take in carbon dioxide and release oxygen.

Plants take in carbon dioxide and release oxygen.