I would go with C. hope this helps :)
Marie Curie was a physicist and chemist and a pioneer in the study of radiation. She and her husband, Pierre, discovered the elements polonium and radium. Together, they were awarded the Nobel Prize for Physics in 1903, and she received another one, for Chemistry, in 1911.
The answer is James Monroe
Hope this helped!<3
the romans had an advantage on land because of their superior skills of combat and dicipline. Their one disadvantage was that they had no navy at all, because they thought of travelling over water as bad luck, and also because their military was too large for the commanders to organize them, because it would be like 8 commanders getting the attention of 100,000,000 soldiers