Lignin is the important constituent in the cell wall of

Options

A. Phloem
B. Parenchyma
C. Xylem
D. Cambium

Answer

C

Explanation

It is a largely a supporting structure and is part of the secondary thickening of tall plants. It a major constituent of woody material. Lignin supporting their tissue in addition to the long, dead cells of the xylem vessels.