Which of the following describes the body’s defense against pathogens?

• A. Inflammation
• B. Antibody Production
• C. Immunity
• D. Fever

Answer: (C)

Immunity is the body’s overall defense against pathogens. It encompasses the whole protective system that recognizes invaders, mounts responses to stop them, and remembers how to fight them in the future. Within immunity, rapid nonspecific defenses like inflammation help contain threats and summon immune cells, while specific defenses such as antibody production by B cells target particular pathogens. Fever often accompanies immune activation as a way to slow pathogen growth, but it’s a symptom rather than the defense itself. So immunity best describes the body’s comprehensive defense against pathogens.