Which of the following statements regarding infectious mononucleosis is FALSE?
A. Infectious mononucleosis is caused by the Epstein-Barr virus.
B. Most adults (>90%) have been infected with the Epstein-Barr virus
C. Splenic rupture is a dreaded complication of infectious mononucleosis.
D. Streptococcal pharyngitis and infectious mononucleosis never coexist.
E. The usual mode of transmission of the viral etiology of infectious mononucleosis is through infected saliva.