Q.Read the following passage and answer the question: Marie Curie was a brilliant scientist. She was born in Poland in 1867. She moved to Paris to study mathematics and physics. There she met Pierre Curie, whom she married. Together they discovered two new elements, polonium and radium. Marie Curie was the first woman to win a Nobel Prize and the only person to win a Nobel Prize in two different scientific fields: Physics and Chemistry. Despite her fame, she remained humble and dedicated her life to science and helping others. She developed mobile X-ray units used during World War I. Question: How many Nobel Prizes did Marie Curie win?