<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 5-year-old boy is brought to the physician by his parents because of 2 episodes of screaming in the night over the past week. The parents report that their son woke up suddenly screaming, crying, and aggressively kicking his legs around both times. The episodes lasted several minutes and were accompanied by sweating and fast breathing. The parents state that they were unable to stop the episodes and that their son simply went back to sleep when the episodes were over. The patient cannot recall any details of these incidents. He has a history of obstructive sleep apnea. He takes no medications. His vital signs are within normal limits. Physical examination shows no abnormalities. Which of the following is the most likely diagnosis?? A: Insomnia disorder, B: Restless legs syndrome, C: Sleep terror disorder, D: Nightmare disorder, E: Sleepwalking disorder,  <response>: This is a clinical vignette describing a 5-year-old boy with two episodes of sudden screaming, crying, and kicking during sleep. The key findings are episodes of abrupt awakening with fearpanic symptoms like screaming, crying, aggressive kicking, sweating, fast breathing during sleep. The episodes last for several minutes and the child has amnesia for the events. The child has a history of obstructive sleep apnea. Based on the abrupt awakening from sleep with fearpanic symptoms and amnesia for the events, this presentation is most consistent with sleep terror disorder. Insomnia disorder involves difficulty initiating or maintaining sleep. Restless legs syndrome causes uncomfortable sensations in the legs resulting in difficulty falling asleep. Nightmare disorder involves vivid dream recall upon awakening, unlike this case. Sleepwalking involves complex motor behavior during sleep but no recall of the event.C: Sleep terror disorder 