Which of the following statement$(s)$ is/are true?
$(A)$ Uneven thickening of cell wall is characteristic of sclerenchyma.
$(B)$ Periblem forms cortex of the stem and the root.
$(C)$ Tracheids are the chief water transporting elements in gymnosperms.
$(D)$ Companion cell is devoid of nucleus at maturity.
$(E)$ The commercial cork is obtained from $Quercus$ $suber$.

• A
  $B, C$ and $E$ only
• B
  $A, B$ and $C$ only
• C
  $B, D$ and $E$ only
• D
  $A, C$ and $E$ only