Which of the following carbohydrate have $'L'-$ configuration ?

• A

  $\begin{array}{*{20}{c}}
    {\begin{array}{*{20}{c}}
    {\,\,\,\,\,\,\,\,\,CHO\,\,\,\,} \\ 
    {|\,\,\,} 
  \end{array}} \\ 
    {H - C - OH} \\ 
    {|\,\,\,} \\ 
    {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2} - OH} 
  \end{array}$

• B

  $\begin{array}{*{20}{c}}
    {\begin{array}{*{20}{c}}
    {\begin{array}{*{20}{c}}
    {\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}OH\,\,\,} \\ 
    {|\,\,\,\,\,\,} 
  \end{array}} \\ 
    {\,\,\,\,\,\,\,\,\,\,\,\,\,\,C = O\,\,\,\,\,\,\,\,\,} \\ 
    {|\,\,\,\,\,\,} 
  \end{array}} \\ 
    {H - C - OH\,\,} \\ 
    {|\,\,\,\,\,} \\ 
    {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2} - OH\,\,} 
  \end{array}\,\,$

• C

  $\begin{array}{*{20}{c}}
    {\begin{array}{*{20}{c}}
    {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,CHO\,\,\,\,} \\ 
    {\,\,\,\,|\,\,} \\ 
    {HO - C - H\,\,} \\ 
    {\,\,\,|\,\,} 
  \end{array}} \\ 
    {\,\,\,\,H - C - OH} \\ 
    | \\ 
    {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}OH} 
  \end{array}$

• D

  $\begin{array}{*{20}{c}}
    {\begin{array}{*{20}{c}}
    {\,\,\,\,\,\,\,\,\,\,\,\,\,CHO\,\,\,\,} \\ 
    {\,\,\,\,|\,\,\,} \\ 
    {HO - C - H\,\,} \\ 
    {\,\,\,|\,\,} 
  \end{array}} \\ 
    {\,\,\,\,HO - C - OH\,\,} \\ 
    {\,|} \\ 
    {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}OH} 
  \end{array}$