Tissue present in an annual ring is
Secondary xylem and phloem
Primary xylem and phloem
Secondary xylem only
Primary phloem and secondary xylem
“Sap wood” is otherwise called
$A$ : Intercalary meristems are commonly located at the base of leaves, above the nodes or below the nodes.
$R$ : Vacuoles are large sized in the cells of intercalary meristem.
The cambial ring is generally
$I.$ Protection of internal tissues
$II.$ Protection of leaves from microbes
$III.$ Gaseous exchange
$IV.$ Reduction in the rate of transpiration through epidermal cells due to trichomes
Which of the function of epidermis is/are relevant from the above given statements?