A) Mangifera indica
B) Avadirachra indica
C) Qiterciis suber
D) Ficiis bengalensis
Correct Answer: C
Solution :
Commercial cork is obtained from unit bark of Qutierciis suber (cork oaks outer bark) of family Tagaceae. The virgin cork is the cork removed when the tree is 20 years old. It is the cambium which regenerates corks.
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