The correct answer is D. H2O and CO2.
The substance which is produced by cellular respiration is termed as a set of metabolic processes and reactions which takes place in the organisms' cells, which later are converted to biochemical energy which is got from nutrients found in the adenosine triphosphate and by the end of process it is released as a waste product.
Catabolic reaction are reactions which are involved in the respiration and breaks large molecules to small molecules and in that process they release energy.
Cellular respiration is referred to as exothermic redox reaction which its work is to release heat.
