The king and Queen Isabella And Ferdinand
History, for one. Communism is mostly attributed to Karl Marx, whom believed that workers are abused by the upper class. Communism is mainly the belief that one "takes as he needs" rather than own more than what is needed. This idea has failed in practice as Joseph Stalin abused the system.
Abilities refers to the things that make you capable in doing something.
C.) is the corrcet answer HOPE THAT HELPED