An organic compound with a vapor density of 56.5 has the following percentage composition.
C= 53.1% N= 12.4% H= 62%. The molecular formula of the compound is?

• A. C₂H₆O₂N
• B. C₅H₆O₂N
• C. (C₆H₇O₂N)_1/7
• D. C₅H₇O₂N (Relative masses: N=14, O=16, C=12, H=1)