Which one of the following statements pertaining to plant structure is correct

Options

A. The sclerenchyma comprises of isodiametric cells and forms the major component with organs.
B. Xylem parenchyma cells are dead thin - walled with a cell wall made of pectin.
C. Tracheids are elongated or tube - like cells with thick and lignified walls and no protoplasm.
D. Parenchymatous cells provide mechanical support to the internal organs.

Answer

C