The correct answer is C. they both sought equal rights for African Americans.
The 14th amendment states that any person born on US soil is automatically a US citizen. This was passed only a few years after the Civil War, as a means to ensure that newly freed slaves had all the freedoms/rights that white citizens had in society.
The Civil Rights Act of 1964 was a federal law that bans work place discrimination. This means that a person cannot be stopped from obtaining a job based on their race, color, religion, gender, nation of origin, etc.