Which of the following is a correct matching set?

Based on the given figure showing cross-sections of animals,identify the correct classification for $a, b,$ and $c$ regarding their body cavity (coelom).

Match the following animals with their respective phyla and arrange them in the correct order as per the given list of animals: Animals: $Leucosolenia$,$Opalina$,$Planaria$,$Wuchereria$. Phyla: $Aschelminthes$,$Protozoa$,$Porifera$,$Platyhelminthes$.

The radial symmetry is observed in
$I$. Platyhelminthes $II$. Coelenterates $III$. Aschelminthes $IV$. Annelids $V$. Echinoderms

What is common between $Ascaris$ $lumbricoides$ and $Anopheles$ $stephensi$?

Match the following columns correctly and select the appropriate option:

Column $A$	Column $B$	Column $C$
$(1)$ Planaria	$(a)$ Planula	$(e)$ Ostia
$(2)$ Hyalonema	$(b)$ Pseudocoelomate	$(f)$ Flame cells
$(3)$ Hydra	$(c)$ Platyhelminthes	$(g)$ Polyp
$(4)$ Wuchereria	$(d)$ Porifera	$(h)$ Aschelminthes