${H_2}N\, - \mathop C\limits^{\mathop {||}\limits^{NH} } - \,NH\, - \,C{H_2}\, - \,C{H_2}\, - \,\,C{H_2} - \mathop C\limits_{\mathop |\limits_H }^{\mathop |\limits^{N{H_2}} } - \,\mathop C\limits^{\mathop {||}\limits^O } - \,OH$
$(A)$ Glucose $(B)$ Gulose $(C)$ Fructose $(D)$ Maltose $(E)$ Mannose
$(i)$ Diastereomers $(ii)$ Geometrical isomers
$(iii)$ Epimers $(iv)$ Anomers
$(v)$ Enantiomers