Autoimmune diseases such as arthritis become more common as people get older. "Autoimmune" means that the immune system

A) no longer produces antibodies.
B) destroys the body's own tissues.
C) is incapable of initiating phagocytosis.
D) produces T cells but no B cells.
E) protects itself.

Autoimmune Diseases

Disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs.

Phagocytosis

Cells’ ingestion of solid substances, such as other cells, bacteria, bits of necrosed tissue, and foreign particles.

Antibodies

Proteins produced by the immune system to help protect the body from harmful invaders like bacteria and viruses.