Answer:
b. marked the most important change in the U.S. Constitution since the Bill of Rights.
Explanation:
The Constitution of the United States is the written legal document of the United States federal government according to which the function and the structures of the U.S. government works. It also provides the basic rights to the citizens of United States.
The Bill of Rights of the U.S. Constitution is the first ten amendments that guaranteed certain fundamental rights to the U.S. citizens such as freedom of speech, worship and assembly, etc.
The fourteen amendment to the United States' Constitution was ratified in the year 1868. It provided citizenship to the people through naturalization or by birth in United States to all including the former slaves and granted equal protection to all the citizens of the laws.
Hence the correct option is (b).
I believe the answer is: D. performing charitable work for the African American community
United Negro Improvement Association was created in order to improve the quality of lives for African American citizens in united states, which might be stunted due to having to face centuries of slavery, racial segregation, and years of racial discrimination.
One of their main program is providing poor African American students with scholarship to pursue their education.
African americans were put into political power in the south
This is an example of conservation
Conservation is the act of preserving, protecting or wise use of human and natural resources (in an efficient way). Conservation prevents wasteful use of resources and provides the benefits of continuous and long term use of resources. Conservation is accomplished through methods such as recycling, alternative technologies and waste reduction.