Which one of the following groups of three animals is correctly matched with their one characteristic morphological feature?

$Option$	Animals	Morphological features
$(a)$	Scorpion,spider,cockroach	Ventral solid central nervous system
$(b)$	Cockroach,locust,Taenia	Metameric segmentation
$(c)$	Liver fluke,sea anemone,sea cucumber	Bilateral symmetry
$(d)$	Centipede,prawn,sea urchin	Jointed appendages

• A
  $(a)$
• B
  $(b)$
• C
  $(c)$
• D
  $(d)$