Answer:
Marie Curie has achieved a lot during her career. She won two Nobel Prize one in Physics and one in Chemistry. She also discovered Xrays. Marie Curie also discovered two elements which is the polonium and radium. Her legacy remains by remembering all her contributions to Science.
I suppose the C is right, because at that time,Spain and Portugal take advantage of slave and cane to be rich, they buy the black people from African to plant sugar cane.
It cause the natives to change their culture and the world around them