Which of the following is optically active :-

  • A

    $\begin{array}{*{20}{c}}
      {C{H_3} - {\mkern 1mu} {\mkern 1mu} CH - COOH} \\ 
      {|\,\,\,\,\,\,\,\,\,\,\,} \\ 
      {{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} OH\,\,\,\,\,\,\,\,\,\,} 
    \end{array}$

  • B

    $\begin{array}{*{20}{c}}
      {\begin{array}{*{20}{c}}
      H \\ 
      | 
    \end{array}} \\ 
      {C{H_3} - C - C{H_3}} \\ 
      | \\ 
      H 
    \end{array}$

  • C
    816-c948
  • D

    None

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