A 32-year-old female, asymptomatic, not requiring blood transfusion, presents with Hb 13.0 gm/dl. Her HbF levels are 95%, HbA2, 1.5%. Which of the following is the most likely diagnosis -
Hereditary persistence of fetal hemoglobin Beta homozygous thalassemia Thalassemia intermedia Beta heterozygous thalasiemia