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: Pharmacology
[{'content': 'Which of the following combination of iron can be given both IM and IV \nSelect and explain. \nA. Iron dextran, B. Iron Sorbitol Citrate Solution, C. ferrous Sulphate, D. ferrous Humourate', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]