Here's a problem to solve: Photosynthesis is a process involving carbon dioxide, water, glucose, oxygen, and sunlight. Which is the correct chemical equation for photosynthesis?

Among the 4 following options, which is the correct answer?

- A: O_{2} + H_{2}O + energy -> C_{6}H_{12}O_{6} + CO_{2}
 
- B: CO_{2} + H_{2}O -> C_{6}H_{6}O_{3} + O_{2} + energy
 
- C: 6O_{2} + 6H_{2}O -> C_{6}H_{12}O_{6} + 6CO_{2} + energy
 
- D: 6CO_{2} + 6H_{2}O + energy -> C_{6}H_{12}O_{6} + 6O_{2}
 