Match the following columns:
Column-$I$Column-$II$
$I$. Choanocytes$p$. Cnidaria
$II$. Cnidoblasts$q$. Platyhelminthes
$III$. Flame cells$r$. Porifera
$s$. Aschelminthes

  • A
    $I-s, II-p, III-q$
  • B
    $I-r, II-p, III-q$
  • C
    $I-q, II-p, III-s$
  • D
    $I-r, II-p, III-s$

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