Which of the following microorganism causes scarlet fever?
a. Streptococcus pyogenes
b. Staphylococcal enterotoxin
c. Staphylococcus aureus
d. Clostridium perfringens
a. Streptococcus pyogenes
b. Staphylococcal enterotoxin
c. Staphylococcus aureus
d. Clostridium perfringens