M.B. is a generally healthy 36-year-old woman with complaints of persistent generalized

M.B. is a generally healthy 36-year-old woman with complaints of persistent generalized fatigue. At her annual checkup she is noted to have the following vital signs: heart rate 118 beats/min, blood pressure 128/60, oral temperature 37o C, and respiratory rate 26 breaths/min. Her skin and nail beds are pale. Laboratory results demonstrate hematocrit (Hct) 31%; hemoglobin (Hb) 10 g/dl; mean corpuscular hemoglobin concentration 27; mean corpuscular volume 70; total iron binding capacity 600 mg/dl. What other history data would be helpful in determining the cause of this disorder? A. Heavy menses or other source of chronic bleeding.B. Joint pain.C. Pale conjunctiva.D. Abdominal pain.