Which of the following pairs does not contain both elements?

Options

A. Tracheids and Collenchyma
B. Sclerenchyma and sieve tube
C. Sclerenchyma and trachea
D. Parenchyma and endodermis

Answer

C

Explanation

Lignin is a unique hydrocarbon comprising `8-20%` of the secondary wall of terrestrial plants. It us a complex, dense amorphous secondary wall polymer found in the trachea and sclerenchyma elements of plants.