Marie Curie was born in Warsaw, Poland, on November 7, 1867. She moved to Paris in 1891 to study at the Sorbonne. In 1895, she married Pierre Curie. Together, they discovered polonium and radium in 1898. Marie Curie won her first Nobel Prize in Physics in 1903 and her second Nobel Prize in Chemistry in 1911. She died on July 4, 1934. According to the text, when did Marie Curie discover polonium and radium?
A) 1867