Feminism Is Best Defined As

Feminism is best defined as: 

A)  a doctrine demanding seat reservations for women in state legislatures. 
B)  an ideology supporting segregation of men and women prisoners. 
C)  a doctrine advocating full political, economic, and social equality for women. 
D)  an ideology supporting the practice of "glass ceiling" in the workplace. 
E)  a doctrine advocating free passage of women across borders.