Answer:
Blitzkrieg, (German: “lightning war”) military tactic calculated to create psychological shock and resultant disorganization in enemy forces through the employment of surprise, speed, and superiority in matériel or firepower.
Explanation:
The first option is the best source. it is written by an authority on the topic.
Okay....?
Im not exactly sure what you are trying to ask..
Our bodies produce antibodies to defend against pathogens to it cant be A.Antibiotics are a drug given to people that are sick to it cant be C so it has to be B