A. Phloem and Epidermis
B. Parenchyma and Cambium
C. Collenchyma and Sclerenchyma
D. Collenchyma and Cambium
E. Xylem and Cambium
Correct Answer:
Option C – Collenchyma and Sclerenchyma
Explanation
Collenchyma cells have thin primary walls with some areas of secondary thickening. Collenchyma provides extra mechanical and structural support, particularly in regions of new growth. Sclerenchyma cells have thick lignified secondary walls and often die when mature. Sclerenchyma provides the main structural support to a plant.
