Which statements explain the differences between a primary and a secondary response to exposure to the same antigen?
1) The primary response is slow, because there are only a few B-lymphocytes that are specific to the antigen.
2) The secondary response is faster, because there are many memory cells specific to the antigen.
3) More antibodies are produced during the secondary response, because many of the memory cells differentiate into plasma cells specific to the antigen.
1, 2 and 3
2 )
1 and 2 only
3 )
1 and 3 only
4 )
2 and 3 only
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