The immune system is the body's defense against ______.

A) genetic abnormalities
B) aging
C) infections
D) external traumas

Immune System

The complex network of cells, tissues, and organs that work together to defend the body against infection, disease, and foreign substances.

Genetic Abnormalities

Variations or mutations in the DNA sequence that can lead to diseases, disorders, or differences in physical or mental health.

External Traumas

Events or experiences originating outside the individual that cause significant psychological distress or damage.