Which of the following statements are not correct?
I. Cork cambium is otherwise called phellogen.
II. Cork is otherwise called phellem.
III. Secondary cortex is otherwise called periderm.
IV. Cork cambium, cork and secondary cortex are collectively called phelloderm.
Select the correct answer using the codes given below:
- I and IV
- II and IV
- I and II
- II and III
- III and IV