A. Protein
B. Starch
C. Energized Chlorophyll
D. Hydroxyl ions
Correct Answer: Option B
B. Starch
Explanation
Starch is the main and first product formed during photosynthesis because the simple sugar formed is partly used by the plant and excess of it is converted into starch immediately for storage and the starch is transported to other parts of the plant through the phloem vessels for storage.