a 65 year old patient comes to your office complaining that she frequently feels weak and dizzy. Additionally, she notes her tongue is swelling and that she has recently begun to experience excessive weight loss. Physical examination findings include postive Romberg’s and Babinski signs. Which of the following labratory results would confirm the msot likely diagnosis? A. high red cell distribution width, B. cellulose acetate and citrate agar gel electrophoresis, C. anti-intrinsic factor and anti-parietal cell antibodies, D. Decreased mean corpuscular volume