This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'Regarding Schik’s test which of the following is false : \nSelect and explain. \nA. Erythematous reaction in both arms indicate hypersenstivity, B. Positive test means that person is immune to diptheria, C. Diptheria antitoxin is given intradermally, D. Test done to find out immune status against diptheria', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]