This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
[{'content': 'The congenital rubella syndrome \nSelect and explain. \nA. May be prevented by vaccination in early pregnancy, B. Causes IUGR, C. Cuases cataract, D. Causes deafness only if acquired only if acquired before 16 weeks of gestation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Congenital rubella syndrome cause communication problem& developmental retardation REF:<\\p> ANATHANARAYANAN MICROBIOLOGY NINTH EDITION PAGE.555', 'role': 'assistant'}]