Which statement about the B cells' abilities to produce antibodies is most accurate?
A) There are no B cells until an antigen is encountered.
B) Most B cells are capable of producing any kind of antibody.
C) B cells wait to encounter an antigen and then copy it.
D) There may be 100 million different B-cells, each producing a different antibody.
E) B cells don't produce antibodies until they develop in the thymus.
Answer: D
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