<prompt> Shigella are be divided into subgroup on the basis of ability to ferment -LactoseMaltoseFructoseMannitol  <response>: Ans. is d i.e., Mannitol Fermentation of mannitol is of impoance in classification Shigella Mannitol fermenting Mannitol nonfermenting . Sh. flexneri sub group B Sh. dysenteriae sub group A . Sh boydii sub group C . Sh. Sonnei sub group D 