<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 by his mother to the emergency department with fever, sore throat, runny nose, and rash. The patients mother says that symptoms started 3 days ago and that the rash first appeared on his face before spreading. His past medical history is unremarkable. The patients family recently moved from Japan to the USA so that the patients father could work in a famous sushi restaurant in New York. The boys vaccination history is not up to date according to US guidelines. His temperature is 38.3C 101.0F. On physical examination, there is a maculopapular rash present on the trunk and extremities. There is also significant bilateral cervical lymphadenopathy and small petechial spots on the soft palate. Symptomatic treatment is provided and the patient recovers in 3 days. Which of the following best describes the most likely causative agent responsible for this patients condition?? A: Double-stranded DNA virus, B: Single-stranded positive-sense RNA virus, C: Cocci in chains, D: Double-stranded RNA virus, E: Single-stranded RNA retrovirus,  <response>: Based on the clinical presentation described in the question stem, this appears to be a case of measles rubeola infection in a child. The key findings are fever, runny nose, rash starting on the face and spreading, cervical lymphadenopathy, and petechiae on the soft palate in a child with incomplete vaccinations who recently moved from Japan. This presentation is classic for measles, which is caused by a single-stranded, positive-sense RNA virus. B: Single-stranded positive-sense RNA virus 