Photo means light and synthesis means formation. It is a process of formation of food in the presence of light.
It takes place in green plants because they contain chlorophyll and chlorophyll is one of the vital reactant required for this process.
The light gets trapped in the leaf and process the formation of glucose.
Leaf is where photosynthesis takes place. When glucose is formed in leaf, it is transported to other parts of the plants with the help of the vascular bundles.
The answer is B. CO2 + H2O + Sunlight ----> Glucose + O2
