Individuals Who Express HLA-B27 Are 90 Times More Likely to Develop

Multiple Choice

Individuals who express HLA-B27 are 90 times more likely to develop the autoimmune disorder ankylosing spondylitis than individuals with a different HLA allele at this locus.This leads to the conclusion that

A) HLA-B27 causes ankylosing spondylitis.
B) individuals with HLA-B27 will develop ankylosing spondylitis.
C) autoimmune disorders must have genetic components.
D) patients with ankylosing spondylitis express HLA-B27.
E) None of the answers are correct.