Match the following columns:
Column $I$Column $II$
$I.$ Motile bacteria$p.$ Mucilage layer
$II.$ Glycocalyx$q.$ Ribosomes
$III.$ Gas vacuole$s.$ Photosynthetic bacteria
$IV.$ $20 \, nm$ diameter$r.$ Flagellin protein

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

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