<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 31-year-old woman comes to the physician because of a 2-day history of low-grade intermittent fever, dyspnea, and chest pain that worsens on deep inspiration. Over the past 4 weeks, she has had pain in her wrists and the fingers of both hands. During this period, she has also had difficulties working on her computer due to limited range of motion in her fingers, which tends to be more severe in the morning. Her temperature is 37.7C 99.8F. Physical examination shows a high-pitched scratching sound over the left sternal border. Further evaluation of this patient is most likely to reveal which of the following findings?? A: Mutation of the HFE gene, B: Blood urea nitrogen level 60 mgdL, C: Decreased C3 complement levels, D: Increased titer of anti-citrullinated peptide antibodies, E: Coxsackie virus RNA,  <response>: This is a clinical vignette describing a 31-year-old woman with a 2-day history of fever, dyspnea, chest pain, and joint pain and stiffness in her hands. The key findings are:- Low-grade intermittent fever- Dyspnea and pleuritic chest pain - Pain, swelling, and morning stiffness in wrists and fingers over the past 4 weeks- Limited range of motion in fingers, worse in the morning- Pericardial friction rub on cardiac examThis presentation is most consistent with an inflammatory arthritis like rheumatoid arthritis. The morning stiffness, symmetric small joint arthritis, and extra-articular manifestations like pericarditis point towards an autoimmune etiology rather than an infectious one. Of the answer choices, increased anti-CCP antibody titers would be expected in rheumatoid arthritis. The other lab abnormalities listed would not be typical.D: Increased titer of anti-citrullinated peptide antibodies 