This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fundamentals In Radiology, Subject name: Radiology
[{'content': 'X-rays were discovered by: \nSelect and explain. \nA. Madam Curie, B. Henry Becquerel, C. William Roentgen, D. Chadwick', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans: c (William Roentgen)X-rays were discovered by RoentgenHistorical aspect: Discovery of:J.J Thompson-ElectronsW.K Roentgen-X-rays in 1895Henry Bequeral-Radioactivity in 1896Madam Marie curie-Radioactive substance radium, uraniumRutherford-NucleusChadwick-NeutronMaxwell-Electromagnetic waves', 'role': 'assistant'}]