<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 4-year-old girl is brought to the doctor by her mother with the complaint of hearing loss, which her mother noticed a few days ago when the girl stopped responding to her name. The mother is anxious and says, I want my child to get better even if it requires admission to the hospital. Her family moved to a 70-year-old family home in Flint, Michigan, in 2012. The girl has a known history of beta-thalassemia trait. She has never been treated for hookworm, as her mother states that they maintain good hygiene standards at home. On examination, the girl currently uses only 2-syllable words. She is in the 70th percentile for height and 50th for weight. A Rinne test reveals that the girls air conduction is greater than her bone conduction in both ears. She does not respond when the doctor calls her name, except when he is within her line of sight. Her lab parameters are:Hemoglobin 9.9 gmMean corpuscular volume 80 flRed blood cell distribution width RDW 15.9Serum ferritin 150 ngmlTotal iron binding capacity 320 μgdLA peripheral smear shows a microcytic hypochromic anemia with basophilic stippling and a few target cells. Which of the following is the next best step in the management of this patient?? A: Blood transfusion, B: Multivitamins with iron supplementation, C: Chelation therapy if the blood lead level is more than 25 μgdL, D: Remove and prevent the child from exposure to the source of lead, E: Treatment for hookworm,  <response>: This is a clinical case scenario involving a 4-year-old girl with hearing loss. Based on the information provided, the most likely diagnosis is lead poisoning. Key findings supporting this include:- Recently moved to a 70-year-old home, which likely contains lead paint- Microcytic hypochromic anemia with basophilic stippling and target cells on peripheral smear - characteristic of lead poisoning- Elevated RDW- Normal serum ferritin rules out iron deficiency anemia- Air conduction greater than bone conduction on Rinne test indicates conductive hearing loss, which can be caused by lead poisoningThe next best step would be to identify and remove the source of lead exposure, which is most likely the old home. Chelation therapy may be indicated if blood lead level is very high. Blood transfusion, iron supplements, or hookworm treatment are not indicated based on the information provided.D: Remove and prevent the child from exposure to the source of lead 