4 year old male being treated with antibiotics and folic acid supplements 7 year old female being treated with chronic transfusion therapy 15 year old male who will have a bone marrow transplant

The correct answer is option B which is a 7-year-old female being treated with chronic transfusion therapy.

Explanation: Chronic transfusion therapy is the therapy in which a patient is given the blood monthly or weakly. It is usually done for patients of sickle cell disease in which due to genetic causes the patient's blood cells are in sickle shape and are unable to normal function. The cure of this disease is bone marrow transplant.