Answer : The correct option is, (B) carbohydrates
Explanation :
Photosynthesis : It is a type of process that occurs in the plant. In the photosynthesis process, when the carbon dioxide react with water in the presence of sunlight then it gives glucose as a product and oxygen as a byproduct.
The balanced chemical reaction will be,

Hence, the food produced by the photosynthesis is, carbohydrate.