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: Medicine
[{'content': 'Iron dextran is given in A/E - \nSelect and explain. \nA. Macrocytic anemia, B. Severe blood loss, C. Iron deficiency anemia, D. Hookworm anemia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]