PLS HELP ASAP!!!!
James was exposed to a pathogen when he was 10 years old and felt ill.

What would most likely happen if he were exposed to the same pathogen when he is 12 years old?
A His body would destroy the pathogen before he felt symptoms.
B His reaction to the pathogen would be worse than the first.
C His antibodies would decrease, since he had been exposed already.
D New types of antibodies would be made in response to the second exposure.