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: Pediatrics
[{'content': 'Which of the following is not a usual feature of Ascariasis – \nSelect and explain. \nA. Abdominal pain, B. Urticaria, C. Anaemia, D. Loefflers syndrome', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]