Which of the following animals does not belong to the phylum $Mollusca$?

Given are the four matches of phyla with their characteristic cells:
$A$. Coelenterata - Nematocytes
$B$. Porifera - Choanocytes
$C$. Ctenophora - Solenocytes
$D$. Platyhelminthes - Nephrocytes
Mark the option that has both correct matches.

Find the correct matching:

Match the following columns and select the correct option.

Column-$I$	Column-$II$
$(a.)$ Sea fan	$(i)$ Mandarina
$(b.)$ Sea hare	$(ii)$ Taenia
$(c.)$ Radial symmetry	$(iii)$ Gorgonia
$(d.)$ Endoparasite	$(iv)$ Aplysia

Which of the following characteristics are $NOT$ common to both Aves (birds) and Mammalia (mammals)?
$I$ - Homeothermic (warm-blooded) animals.
$II$ - Respire through lungs.
$III$ - Possess a four-chambered heart.
$IV$ - Dioecious (sexes are separate).
$V$ - Possess hair on the skin.
$VI$ - Show internal fertilization.
$VII$ - Possess teeth.

The only incorrectly matched pair is