Answer:
C. Minorities and women had to fight for equal rights.
Explanation:
The main idea in "Rosa" is Rosa Parks' refusal to stand up or relinquish her seat due to her colour or racial discrimination, even though there was law that separates the white and the colored people in the bus section.
It was a moment that triggered the movement or advocacy for ending segregation, and promotion of equal treatments and citizenship for the African Americans.
