Answer:
The correct answer is A) light energy
Step-by-step explanation:
Photosynthesis is the process through which plants make their food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight. Six molecules of oxygen are released in this process.
Photon present in the sunlight provides energy which is absorbed by a green pigment chlorophyll present in the thylakoid of chloroplast. Then this energy is used for carbon fixation process to obtain glucose.
The reaction of photosynthesis is:
6CO₂ + 6H₂O + Sunlight → C₆H₁₂O₆ + 6O₂
Therefore sunlight must be added to the chemical equation to more accurately represent photosynthesis.