Question

which disease is caused by the bodys immune system attacking healthy cells?
o lupus
o cancer
o sickle cell disease
o cardiovascular disease

Explanation:

Lupus is an autoimmune disease where the immune system attacks healthy cells. Cancer is due to abnormal cell growth, sickle - cell disease is a genetic disorder of red blood cells, and cardiovascular diseases are related to heart and blood vessels.

Answer:

lupus