In the photomicrograph, a transverse section of part of a dicotyledonous leaf is shown. Which labels correctly identify 1, 2, 3 and 4?
- A1 phloem; 2 xylem; 3 palisade mesophyll; 4 spongy mesophyll
- B1 phloem; 2 xylem; 3 spongy mesophyll; 4 palisade mesophyll
- C1 xylem; 2 phloem; 3 palisade mesophyll; 4 spongy mesophyll
- D1 xylem; 2 phloem; 3 spongy mesophyll; 4 palisade mesophyll