i will give brainliest to correct answer - link = report

Answer:
A
Explanation:
Cellular Respiration's formula is C6H12O6 + 6O2 → 6CO2 + 6H2O.
Photosynthesis's formula is 6CO2 + 6H2O → C6H12O6 + 6O2.
C6H12O6 is glucose
O2 is oxygen
CO2 is Carbon Dioxide
H20 is Water