question: Q:A 24-year-old woman comes to the physician for preconceptional advice. She has been married for 2 years and would like to conceive within the next year. Menses occur at regular 30-day intervals and last 4 days with normal flow. She does not smoke or drink alcohol and follows a balanced diet. She takes no medications. She is 160 cm (5 ft 3 in) tall and weighs 55 kg (121 lb); BMI is 21.5 kg/m2. Physical examination, including pelvic examination, shows no abnormalities. She has adequate knowledge of the fertile days of her menstrual cycle. Which of the following is most appropriate recommendation for this patient at this time?? 
  {'A': 'Begin folate supplementation', 'B': 'Begin high-dose vitamin A supplementation', 'C': 'Begin vitamin B12 supplementation', 'D': 'Begin iron supplementation', 'E': 'Gain 2 kg prior to conception'},