Which of the Following Statements Is Incorrect Regarding Memory B

Multiple Choice

Which of the following statements is incorrect regarding memory B cells?

A) Memory B cells are maintained for life.
B) In secondary responses,the number of pathogen-specific B cells is about 10-100-fold that seen in primary responses.
C) The sensitivity of memory B cells is improved compared with naive B bells because affinity maturation has occurred.
D) Memory B cells express lower levels of MHC class II and B7 than do naive B cells.
E) Memory B cells differentiate into plasma cells more rapidly than do naive B cells.