The reaction that is an example of an anabolic reaction and represents photosynthesis is:
A. 6CO2 + 6H2O --> C6H12O6 + 6O2
Anabolic reactions are those that build larger molecules from smaller ones, which is what occurs during photosynthesis as glucose (C6H12O6) is synthesized from carbon dioxide (CO2) and water (H2O).