निम्नलिखित में से कौनसा यौगिक प्रतिबिम्ब रूपों में रह सकता है

• A

  $C{H_3} - \mathop {\mathop {CH - COOH\,}\limits^{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} }\limits^{C{H_3}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} $

• B

  $C{H_2} = CHC{H_2}C{H_2}C{H_3}$

• C

  $C{H_3} - \mathop {\mathop {CH - C{H_3}\,}\limits^{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} }\limits^{N{H_2}\,\,\,\,\,\,\,\,\,\,\,\,} $

• D

  $C{H_3} - C{H_2} - \mathop {\mathop {CH - C{H_3}}\limits^{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} }\limits^{N{H_2}\,\,\,\,\,\,\,\,\,\,\,\,} $