According to "1921: Marie Curie Visits the U.S.," what was the reason for Marie Curie's visit to America?

to help raise money to buy a gram of radium for use at the Institute of Radium

to campaign for the re-election of President Warren G. Harding

to sell some of the precious radium that she used in her scientific research

to persuade Mrs. W.B. Meloney to be her benefactress

20 points