A 12-Year-Old Girl Presented to Her Physician with a Sore

A 12-year-old girl presented to her physician with a sore throat,lymphadenopathy,and fatigue.Her laboratory results were 5,000 lymphocytes/microliter with 10% atypical lymphocytes,cytomegalovirus antibody negative,and heterophile antibody screen negative.These laboratory results:

A) confirm a diagnosis of infectious mononucleosis.
B) indicate that the diagnosis is not infectious mononucleosis because the heterophile antibody screen is negative.
C) suggest a diagnosis of infectious mononucleosis but should be followed by a heterophile antibody titer to strengthen the diagnosis.
D) suggest a diagnosis of infectious mononucleosis but should be followed by a test for IgM anti-VCA to strengthen the diagnosis.