Which of the following has germicidal properties

• A

  ${\left[{\mathrm{C}}_{16}{\mathrm{H}}_{33}\mathrm{N}{\left({\mathrm{CH}}_3\right)}_3\right]}^{+}{\mathrm{Br}}^{-}$

• B

  

   

• C

  ${\mathrm{CH}}_3{\left({\mathrm{CH}}_2\right)}_{11}-{\mathrm{OSO}}_3^{-}{\mathrm{Na}}^{+}$

• D

  ${\mathrm{CH}}_3{\left({\mathrm{CH}}_2\right)}_{16}\mathrm{COO}{\left({\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{O}\right)}_4{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{OH}$