AIDS is a disorder of the

A) circulatory system.
B) immune system.
C) reproductive system.
D) endocrine system.

AIDS

A severe and ongoing illness, Acquired Immunodeficiency Syndrome is brought on by the human immunodeficiency virus (HIV), posing a risk to life.

Immune System

The complex network of cells, tissues, and organs that protect the body against infection, disease, and foreign substances.

Circulatory System

The body's system responsible for the transport of blood, oxygen, nutrients, and waste products throughout the body.