<prompt> Bile solubility is usedDifferentiation of staphylococcus from streptococcusDifferentiation of group B streptococci from other streptococciDifferentiation of pneumococci from streptococciDifferentiation of streptococci from neisseria  <response>: Ans. is c i.e., Differentiation of pneumococci from streptococci . Pneumococcus is bile soluble, while streptococcus is insoluble. 