During a Successful Secondary Immune Response

During a successful secondary immune response:

A) the inductive period will be longer than it was during a primary response.
B) greatly increased levels of IgM are produced.
C) long-lived plasma cells immediately begin secreting antibody.
D) the number of pathogens should remain below the threshold of disease.
E) there will be a stronger cell-mediated response, but a less vigorous humoral response.