Select the correct pair
a) Cells of medullary rays that form part of combiai ring- interfascicular cambium
b) loose parenchyma cells rupturing the epidermis and forming a lens-shaped opening in bark – spongy parenchyma
c) Large colorless empty cells in the epidermis of grass leaves – subsidiary cells
d) In dicot leaves, vascular bundles are surrounded by large thick – walled cells – conjunctive tissue
