The Primary Focus of B-Cell Expansion Forms in the _____,Whereas

The primary focus of B-cell expansion forms in the _____,whereas a secondary focus of B-cell expansion creates the _____.

A) T-cell area; medullary cords
B) medullary cords; T-cell area
C) T-cell area; B-cell area
D) medullary cords; germinal center
E) light zone; dark zone.