Q. Match Column-I with Column-II and select the correct option from the codes given below.
Column-I Column-IIA.VesselsI.Cells are living with thin cellulosic cell wallsB.TracheidsII.Cells possess highly thickened walls with obliterated central lumenC.Xylem fibres III.Interconnected through perforations in their common wallsD.Xylem parenchymaIV.Tube-like with thick, lignified walls and tapering ends