Match the classes of monosaccharides listed in column I with examples given in column II and select the right number showing the correct combination of alphabets of the two columns
Column IColumn IMonosaccharidesExamplesATetroseseC7H14O7BHexosesfC4H8O4CPentosesgC6H12O6DHeptoseshC5H10O5iC3H6O3
A = f, B = g, C = h, D = e