Which nomenclature is not according to the $IUPAC$ system?

  • A
    $Br-CH_2-CH=CH_2$ ($1-$Bromoprop$-2-$ene)
  • B
    $CH_3-CH_2-C(Br)(CH_3)-CH_2-CH(CH_3)-CH_3$ ($4-$Bromo$-2,4-$dimethylhexane)
  • C
    $CH_3-CH(CH_3)-CH(OH)-CH_3$ ($3-$Methylbutan$-2-$ol)
    Option C
  • D
    $CH_3-CO-CH_2-CH_2-CH_2-COOH$ ($5-$Oxohexanoic acid)

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