Select the correct statement.
Vascular cambium and Cork cambium are the examples of
A.Apical meristem
B.Lateral meristem
C.Intercalary meristem
D.Promeristem

Hint:The region in plants where cell division occurs actively are known as meristems, Meristematic cells are of various shapes and the two types of meristems are primary meristem which appears earlier, and secondary meristem which appears after primary meristem.

Complete answer:
-The meristem present at the tip of root and shoot are known as the apical meristem.
-Apical meristem and intercalary meristem are primary meristems and fascicular vascular cambium, cork cambium and interfascicular cambium are secondary meristems.
-Secondary meristem are responsible for the production of secondary tissue in plants.
-After a certain period, the primary and secondary meristem lose the ability to divide and hence become permanent tissue.
-Secondary meristems are present on the side of the stem and branches of the tree.

Option B: Vascular cambium and cork cambium are examples of secondary meristem also known as lateral meristems, they are involved in Secondary and lateral growth of the plant. Therefore, this is the correct option.

All other options are examples of the primary meristem. Hence all other options are irrelevant.

Hence, the correct answer is option ‘B’.

Note:
1) Vascular cambium is a thin meristematic layer present between the primary phloem and the primary xylem and is responsible for increasing the girth of the plant. Vascular cambium is present in monocot plants because they do not show secondary growth.
2) Cork cambium also known as phellogen is located outside vascular tissue and responsible for the formation of bark and the secondary cortex in plants.