A syndrome marked by minor respiratory symptoms of insidious onset and accompanied by radiographic evidence of insidious onset and accompanied by radiographic evidence of interstital infiltration and a mild intraalvelor exudation is typically caused by
A. streptococus pyogenes
B. streptococus pnuemoniae
C. staphylococcus aureus
D. Klebsiella pnuemoniae
E. mycoplasma pnuemoniae