Question: A 25-year-old woman admitted to the hospital with pale skin, fatigue and malaise. It has slightly decreased values ​​of mean corpuscular volume and hemoglobin, 70 μg / dl, 50 μg / dl ferritin, and a significant increase in the HbA2 fraction with normal HbF in hemoglobin electrophoresis. With these data it can be: 
 Options:  <1> Iron-deficiency anemia <2> Anemia of chronic processes. <3> Polycythemia Vera. <4> Beta Thalassemia Minor. <5> Chronic myeloid leukemia
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