$i.$ The shape of the cells may vary with the function they perform.
$ii.$ Human $RBC$ is about $7.0 \, \mu m$ in diameter.
$iii.$ Cytoplasm is the main arena of cellular activities.
$iv.$ Various chemical reactions occur in cytoplasm to keep the cell in the living state.

  • A
    All are correct
  • B
    Only $i$ and $ii$ are correct
  • C
    Only $iv$ is correct
  • D
    All are wrong

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