Which of the following is a true statement regarding polymyositis? A. Damage is caused by direct muscle damage by autoimmune T cells. B. There is a presence of rash on the eyelids, face, and upper...

Which of the following is a true statement regarding polymyositis?

A. Damage is caused by direct muscle damage by autoimmune T cells.

B. There is a presence of rash on the eyelids, face, and upper chest.

C. It may occur in conjunction with scleroderma and other autoimmune conditions.

D. Damage is caused by the circulation of antigenantibody complexes.