A Patient Says, "My Physician Thinks I May Have Psoriatic

A patient says, "My physician thinks I may have psoriatic arthritis, but there is nothing wrong with my skin." How should the nurse respond?

A) "You must have a subclinical case of psoriasis."
B) "You will probably develop skin eruptions in a few years."
C) "Not all people with psoriatic arthritis also have psoriasis."
D) "There are other arthritis conditions that have similar laboratory values, so additional testing will be likely."