Commericial cork is obtained from

Options

A. Berberis/ Barberry
B. Salix/ Willow
C. Quercus/Oak
D. Betula/ Birch

Answer

c

Explanation

Cork or phellem develops from cork cambium and is made up of dead suberised and rectangular cells which are filled with air and tannins . Cork is protective and is obtained commercially from Quercus suber (cork oak , bottle cork).