Which among the following statement  is correct about photosynthesis ? 

All of these .

The correct answer is Option (4) – All of these .

Following events occur during the  process of photosynthesis :

(i) Absorption of light energy by chlorophyll.

(ii) Conversion of light energy to chemical energy and splitting of water molecules into hydrogen and oxygen.

(iii) Reduction of carbon dioxide to carbohydrates.