CO2 is used to produce water. CO2 is absorbed by mitochondria. CO2 and H2O are converted to carbohydrates. CO2 and H2O are combined into carbonic acid.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which of the following occurs during photosynthesis?
Possibilities:
- CO2 is used to produce water.
- CO2 is absorbed by mitochondria.
- CO2 and H2O are converted to carbohydrates.
- CO2 and H2O are combined into carbonic acid.

CO2 and H2O are converted to carbohydrates.