A) xylem, phloem and pith
B) endodermis, xylemand phloem
C) vascular tissue, pericycle and pith
D) vascular tissue, endodermis and pith
Correct Answer: C
Solution :
According to concept/hypothesis of stele, proposed by Van Tiegham an Douirt the primary body of root and stem are anatomically same, i.e., consist of a central stele surrounded by cortex. The stele was originated in first vascuiar plant (pteridophytes) and consist of vascular tissue, pericycle and pith. Pericycle surround the stele on outer side.
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