Respuesta :
It would be C because oxygen isn’t used by plants and plants only So that would cross out there, B is wrong because humans can’t do photosynthesis. Plants are the only organism that can carry out Cellular respiration, so that takes out D so the only logical answer to say it is used by organisms to carry out cellular respiration
The answer is D because only plants use it all organisms don’t use photosynthesis and oxygen isn’t used in photosynthesis it is given off