<prompt> Which group of streptococcus grow at 60degC -ABCD  <response>: Option 1, 2, 3 Heat tolerance test 60oC is negative for Group A, B, C Streptococci. Option 4 Enterococcus is heat resistant. Enterococcus grows in presence of 6.5 NaCl, pH 9.6 and temperature 55oC which differentiate it from Group D streptococci. 