What Is the Explanation for Why B Cells Come in So

Multiple Choice

What is the explanation for why B cells come in so many different types that can produce so many different antibodies?

A) The genome of B cells is much larger than other body cells.
B) B cells can recombine their genes with T cells.
C) B cells can recombine their genes with the pathogen.
D) B cells have gene fragments that can shuffle or recombine.
E) B cells can regulate shape to match the antigen.