Lab shows elevated WBC count and heterophile antibodies. What is the most likely suffering from?

A 22 year old female college student has splenomegaly. Lab shows elevated WBC count and heterophile antibodies. What is the most likely suffering from ??

A) Mumps
b) Parainfluenza
C) Rubella
D) Infectious Mononucleosis
E) Lymphocytic choriomeningitis