Which group of animals belong to the same phylum?

$A$ list of animals is given below. Identify the animals with an open circulatory system and choose the correct answer.
$(A)$ Ascidia $(B)$ Cockroach
$(C)$ Earthworm $(D)$ Prawn
$(E)$ Silverfish $(F)$ Snail
$(G)$ Squid

Select the correct match for Column $X$, Column $Y$, and Column $Z$:

Column $X$	Column $Y$	Column $Z$
$(1)$ Water vascular system	$(A)$ Porifera	$(p)$ Starfish
$(2)$ Proboscis	$(B)$ Hemichordata	$(q)$ Sepia
$(3)$ Canal system	$(C)$ Mollusca	$(r)$ Hyalonema
$(4)$ Shell	$(D)$ Echinodermata	$(s)$ Balanoglossus

In which one of the following is the genus name,its two characters,and its class/phylum correctly matched?

Genus Name	Two Characters $\&$ Class/Phylum
$A$. $Ascaris$	$(i)$ Body segmented,$(ii)$ Males and females distinct; Phylum: $Annelida$
$B$. $Salamandra$	$(i)$ $A$ tympanum represents ear,$(ii)$ Fertilization is external; Class: $Amphibia$
$C$. $Pteropus$	$(i)$ Skin possesses hair,$(ii)$ Oviparous; Class: $Mammalia$
$D$. $Aurelia$	$(i)$ Cnidoblasts present,$(ii)$ Organ level of organization; Phylum: $Coelenterata$

Trichonympha is a symbiont in the alimentary canal of

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