The correct option is A A- Root hair, B- Epiblema, C- Cortex, D- Endodermis, E- Passage cell, F- Pericycle, G- Pith, H- Phloem, I- Metaxylem, J- Protoxylem
Maize is a monocot. Hence, given cross section is of a monocotelydonous root.
A is showing root hair like structure. Some epidermal cells protrude to give unicellular root hairs. Hence, A- Root hair.
B is showing outermost epidermis layer It is called as epiblema, Hence, B- Epiblema.
C is showing loosely spaced parenchymatous cells. Hence, C- Cortex.
D consists of barrel shaped cells. Hence, D- Endodermis.
E is showing some of the cells of endodermis without thickening. Hence, E- Passage cell.
F is a single layer of cells below endoermis, Hence, F- Pericycle.
Monocot root shows well developed, large central pith. Hence, G- Pith.
Vascular bundles of monocot root are are radial, i.e., present at different radii, xylem is exarch, i.e., protoxylem is away from centre and metaxylem is towards center. H- Phloem, I- Metaxylem, J- Protoxylem.
Thus, the correct answer is option A.