The diagram below shows transverse section through the leaf. In which layer cells do all photosynthesis occurs? And explain why?

Answer:
The answer is B.
Explanation:
Photosynthesis occurs most at B which is the palisade mesophyll cell. Palisade cells have many chloroplasts which contain green pigments called chlorophyll that absorb light energy from Sun allowing photoeynthesis to take place.
Answer:
The answer is Option B). You can give Brainliest to the first response because they explained it.