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: Surgery
[{'content': 'According to Food and Drug administration lactation categories S* Refers to \nSelect and explain. \nA. Safe for nursing infant, medication usually compatible with breast feeding, B. Safety in nursing infants unknown; inadequate Literature available, C. Potential for significant effects on nursing infants medication should be given with caution, D. Not safe for nursing infants; medication contraindicated or requires cessation of breast feeding', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]