Respuesta :
Answer:
B. IgM
Explanation:
IgM is the antibody isotype that is the first antibody type secreted by plasma cells following the initial encounter to the antigen. As soon as the B cells encounter an antigen, the specific immune response is generated by the formation of plasma cells which in turn secrete IgM antibodies.
The function of IgM antibodies is to activate the complement system and to stimulate the agglutination of microbes.
Answer:
lgE
Explanation:
The body sends this out when the body is defending itself from invaders.
