Which are the physical (P), chemical (C), and biological (B) immune responses?

a.) P: complement system; C: saliva; B: coughing

b.) P: coughing; C: saliva; B: complement system

c.) P: coughing; C: sneezing; B: complement system

d.) P: complement system; C: saliva; B: sneezing

b.) P: coughing; C: saliva; B: complement system

Coughing is a physical/mechanical process for removing pathogens or irritants from the lungs, Saliva contains digestive enzymes that chemically digests pathogens and the Complement system is part of the bodies biological immune response.