Which of the Following Statements Concerning Rheumatoid Arthritis (RA) Is

Question

Which of the following statements concerning rheumatoid arthritis (RA) is TRUE?
A) It occurs in humans and animals.
B) The symptoms are due to damage caused by cytotoxic T cells.
C) There is no genetic influence on the likelihood of developing RA.
D) Accumulations of antibody complexes lead to inflammation in and destruction of the joints.
E) The onset of disease is clearly correlated with having been infected with a specific microbe.

Accepted Answer

The accumulation of antibody complexes is a hallmark of rheumatoid arthritis, leading to inflammation in and destruction of the joints. The other options are incorrect; RA primarily occurs in humans, symptoms are due to autoantibodies not cytotoxic T cells, there is a strong genetic component to RA, and there is no clear microbial cause for the disease.