Mesophyll is differentiated into palisade and spongy tissue in
The region present between the upper and lower epidermis of leaves is called mesophyll. It is differentiated into upper palisade and lower spongy parenchyma in dicot leaves or dorsiventral leaves, whereas in monocot leaves or isobilateral leaves, it is undifferentiated and it shows spongy parenchyma.
So, the correct option is ‘All dorsiventral leaves’.