કયો પ્રકાશીય સક્રિય અણુ છે ?

• A

  ${C_6}{H_5}\, - \,\,\mathop C\limits_{\mathop {||}\limits_O } \,\, - \,\,OH$

• B

  $C{H_3}\, - \,\,\mathop C\limits_{\mathop |\limits_{OH} } H\,\, - \,\,{C_2}{H_5}$

• C

  ${C_6}{H_5}\, - \,\,\mathop C\limits_{\mathop |\limits_H } H\,\, - \,\,OH$

• D

  ${C_6}{H_5}\, - \,\,\mathop C\limits_{\mathop |\limits_{C{H_3}} } H\,\, - \,\,C{H_3}$