<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:An 18-month-old boy is brought to the emergency department after losing consciousness. His mother states that he was running with other kids in the park when he suddenly fell down and became unresponsive for less than 1 minute. He has not had any immunizations due to their religious beliefs. The parents report that he plays with other children, but tires easily. He has had difficulty feeding, but there was no follow-up with a pediatrician. The heart rate was 120min and the oxygen saturation was 91. The height is in the 40th percentile and the weight is in the 50th percentile. On examination, the boy is crying with perioral cyanosis. The lung sounds are clear. S-1 is normal and there is a single S-2. A grade 26 systolic ejection murmur is appreciated at the left upper sternal border. When the child squats, the murmur is intensified and the cyanosis improves. What is the most appropriate next step in the management of this patient?? A: Diazepam, B: Morphine, oxygen, nitroglycerin, and aspirin, C: Morphine, oxygen, IV fluids, and beta blockers, D: Observation and reassurance, E: Antibiotics and supportive care,  <response>: This is a clinical case scenario about an 18-month-old boy who lost consciousness while playing in the park. The key findings are:- Lost consciousness briefly - No immunizations due to religious beliefs- Tires easily, difficulty feeding- No pediatric follow-up- Tachycardia, low oxygen saturation - Perioral cyanosis- Normal S1, single S2, systolic ejection murmur intensified with squatting- Cyanosis improves with squattingThis clinical picture is most consistent with tetralogy of Fallot, a congenital heart defect characterized by a ventricular septal defect, pulmonic stenosis, overriding aorta, and right ventricular hypertrophy. The murmur and cyanosis with squatting are classic exam findings. The brief loss of consciousness was likely a tet spell triggered by activity. The next step should be further evaluation and management of his congenital heart disease. Reassurance or observation alone are not appropriate. Antibiotics and medications like diazepam or morphine are not indicated.C: Morphine, oxygen, IV fluids, and beta blockers 