Which Statement Is True Concerning Clonal Selection

Multiple Choice

Which statement is true concerning clonal selection?

A) Clonal selection is driven by hormones and does not require foreign antigens.
B) This theory involves antigens that select those lymphocytes with compatible receptors.
C) Clonal selection takes place in the primary (central) lymphoid organs.
D) This process generates immature but immunocompetent T and B cells with receptors.