<prompt> Bile solubility is used for?Differentiation of staphylococcus from streptococcusDifferentiation of group B streptococci from other streptococciDifferentiation of pneumococci from streptococciDifferentiation of streptococci from neisseria  <response>: Bile solubility test In the presence of surface active agents such as bile and bile salts sodium deoxycholate or sodium dodecyl sulfate, the cell wall of S.pneumoniae undergoes lysis. Other members of alpha-hemolytic streptococci are not lysed by the agents are bile insoluble REF:Ananthanarayan Panickers Textbook of Microbiology 8th Edition pg no: 674 