Which is the correct match based on the characteristics of animals?

Column-$I$	Column-$II$ (Phylum)	Column-$III$ (Example)
$I$. Water canal system	$a$. Porifera	$p$. Sea lily
$II$. Proboscis	$b$. Hemichordata	$q$. Sepia
$III$. Water vascular system	$c$. Mollusca	$r$. Sycon
$IV$. Shell	$d$. Echinodermata	$s$. Balanoglossus

• A
  $I-a-s, II-c-r, III-d-p, IV-b-q$
• B
  $I-b-p, II-c-q, III-d-s, IV-a-r$
• C
  $I-d-s, II-b-p, III-c-r, IV-a-q$
• D
  $I-a-r, II-b-s, III-d-p, IV-c-q$