Answer: When Marie arrived in Paris in 1891, she studied physics at the greatest university in Europe, the Sorbonne. But how poor she was!
In this excerpt, Curie describes how, during the winter, she often had to pile all her clothes on the bedcovers in order to be warm. This shows that Curie did not have lumber or coal to keep her room warm. Moreover, she had to cook her food with an alcohol lamp, and her meals were extremely simple and austere. The passage suggests the life of a student, and the fact that her money was very limited. The sentence that supports the passage, therefore, is the one that describes her studies in Paris and her poverty.