Which of the following statement(s) is/are correct about dorsiventral (dicotyledonous) leaf ? (i) The adaxial (upper surface) bears more stomata than the abaxial (lower surface) epidermis. (ii) Mesophyll, which possesses chloroplasts and carry out photosynthesis, is made up of parenchyma. (iii) Mesophyll is not differentiated into palisade and spongy parenchyma.