The diagrams display transverse sections of parts of a plant (leaf, stem and root). In the transverse sections, what do 1, 2, 3, 4, 5 and 6 represent?
- Aleaf: phloem 1, xylem 2; stem: phloem 3, xylem 4; root: phloem 5, xylem 6
- Bleaf: phloem 1, xylem 2; stem: phloem 4, xylem 3; root: phloem 6, xylem 5
- Cleaf: phloem 2, xylem 1; stem: phloem 3, xylem 4; root: phloem 5, xylem 6
- Dleaf: phloem 2, xylem 1; stem: phloem 4, xylem 3; root: phloem 6, xylem 5