Considering the root apex of monocotyledons,there are three groups of initials. Which of the following correctly describes their derivatives?

• A
  The terminal ones form the dermatogen and the cap,the median forms the periblem and the innermost ones form the plerome.
• B
  The terminal ones form the cap,the median ones form the dermatogen and the innermost ones form the periblem and plerome.
• C
  The terminal ones form the cap,the median ones form the dermatogen and periblem and the innermost ones form the plerome.
• D
  The terminal ones form the cap and the dermatogen,the median ones are non-functional and the innermost ones form the periblem and plerome.