<prompt> Lancefield classifiction of Streptococcus is based onM proteinCarbohydrate C antigen of cell wallHemolysisBile solubility  <response>: Based on oxygen requirement - aerobic ananerobic Browns classification -Based on haemolysis on blood agar alpha, beta, gamma Streptococci maybe classified based on carbohydrate C antigen of cell wall into Lancefield groups A-W ecxcluding I, J M protein types classified into Griffith types 