A Vessels, (iii) Individual members are interconnected through perforations in their common walls

B. Tracheids (iv) Elongated tube-like cells with thick. Lignified walls and tapering end C. Xylem fibres (ii) Cells possess highly thickened walls with obliterated central lumen
D. Xylem parenchyma Cells are living, with thin cellulosic cell walls. Vessels are a type of xylem cell with perforated end walls. These perforations allow individual vessel members to be interconnected, creating a continuous tube-like structure for efficient water and nutrient transport.

Tracheids are elongated cells in xylem tissue with thick. lignified walls. They have tapering ends and play a role in water conduction and mechanical support. Xylem fibres are cells with highly thickened walls and pointed ends. These thick walls provide mechanical strength and support to the plant.

Xylem parenchyma cells are living cells in xylem tissue with thin, cellulose-rich walls.