Explore Westonci.ca, the top Q&A platform where your questions are answered by professionals and enthusiasts alike. Get expert answers to your questions quickly and accurately from our dedicated community of professionals. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

An autoimmune disease occurs when:
A. Cytotoxic T cells attack B cells.
B. Immune cells react to antigens normally present on host cells.
C. Macrophages engulf virus infected host cells.
D. There is an unregulated release of cytokine by helper T cells.