Cedric has a low fever and minor aches. Yesterday, he went to the doctor for his booster shot and received the flu shot. Which best explains why he has this reaction?
Answer
A
Cedric was given an antibiotic.
B
Cedric was too old for the vaccine.
C
The weakened virus stimulated the immune response and resulted in the minor reaction.
D
The vaccine contained antibodies that caused Cedric to make more antibodies.