Match the following columns:
Column-$I$Column-$II$
$(a)$ Contractile vacuole$(i)$ Excretory unit
$(b)$ Parapodia$(ii)$ Food ingestion
$(c)$ Flame cells$(iii)$ Locomotion
$(d)$ Nematocysts$(iv)$ Osmoregulation

  • A
    $a-i, b-ii, c-iii, d-iv$
  • B
    $a-iii, b-iv, c-i, d-ii$
  • C
    $a-iv, b-i, c-iii, d-ii$
  • D
    $a-iv, b-iii, c-i, d-ii$

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