A Primary Immune Response ________, and a Secondary Immune Response

Multiple Choice

A primary immune response ________, and a secondary immune response ________.

A) is very important; is less important to the body's ability to protect itself
B) produces antibodies within five to ten days of exposure to antigens; produces antibodies within a day or two of a subsequent exposure to the same antigen
C) is very rapid in producing antibodies after exposure to antigens; is very slow in producing antibodies after exposure to antigens
D) occurs only in children; occurs only in adults