 
 <prompt> ```Which of the following dey happen during photosynthesis?
Options:
[a]. CO2 dey used to produce water.;
[b]. CO2 dey absorb by mitochondria.;
[c]. CO2 and H2O dey convert to carbohydrates.;
[d]. CO2 and H2O dey combine into carbonic acid.;
``` <response>: ```[c].``` 