In which one of the following is the genus name,its two characters,and phylum $NOT$ correctly matched?

• A

  $A$. Pila

  $(i)$ Body segmented,$(ii)$ Mouth with radula,Phylum: Mollusca

• B

  $B$. Asterias

  $(i)$ Spiny skinned,$(ii)$ Water vascular system,Phylum: Echinodermata

• C

  $C$. Sycon

  $(i)$ Pore bearing,$(ii)$ Canal system,Phylum: Porifera

• D

  $D$. Periplaneta

  $(i)$ Jointed appendages,$(ii)$ Chitinous exoskeleton,Phylum: Arthropoda