At Westonci.ca, we provide clear, reliable answers to all your questions. Join our vibrant community and get the solutions you need. Explore our Q&A platform to find reliable answers from a wide range of experts in different fields. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

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.