During a Primary Humoral Response to Antigens All of the Following

Multiple Choice

During a primary humoral response to antigens all of the following occur, except

A) antibody levels do not peak until 1 to 2 weeks after the initial exposure.
B) B cells may differentiate into plasma cells immediately.
C) the first immunoglobulins to appear in circulation are of the IgM type.
D) B cells may undergo several rounds of mitosis before producing plasma cells and memory cells.
E) neutrophils invade the surrounding areas, releasing chemotactic substances.