Which of the following compounds do not have $sp^3$ carbon atom$(s)$?
$I$. Acetone
$II$. Acetic acid
$III$. Buta-$1,3$-diene
$IV$. Propyne
$V$. Naphthalene

  • A
    $I, II$ only
  • B
    $II, III$ only
  • C
    $IV, V$ only
  • D
    $III, V$ only

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