A 45-year-old auto mechanic comes to the physician's office because an exacerbation of his psoriasis is making it difficult to work. He tells the nurse that his finger joints are stiff and sore in the morning. The nurse should respond by
A．inquiring further about this problem because psoriatic arthritis can accompany psoriasis vulgaris.
B．suggesting he take aspirin for relief because it's probably early rheumatoid arthritis.
C．validating his complaint but assuming it's an adverse effect of his vocation.
D．asking him if he has been diagnosed or treated for carpal tunnel syndrome.
