Which equation best summarizes the overall reactions of photosynthesis?

a
6CO2 + 6H2O → C6H1206 + 6O2
b
6O2 + 6H2O + 6CO2 → C6H1206
c
6O2 + C6H1206 → 6CO2 + 6H2O
d
6CO2 + 6O2 → C6H1206 + 6H2O

a

6CO2 + 6H2O → C6H1206 + 6O2