The is the main government institution responsible for enforcing water policy.
a. environmental protection agency
b. federal department of agriculture
c. conservation foundation
d. local law enforcement agency

A. Environmental Protection Agency is the correct answer.

Explanation:

The creation of environmental protection Agency was propose by Richard Nixon on July 9, 1970. It started functioning on December 2, 1970. The Administrator of the agency is appointed by President and approved by the congress.  Its headquarters is located in Washington DC and the regional offices are located  in its ten regions.It maintains and enforces national standards. It works with industries and government on programs to prevent pollution prevention and promote energy conservation.

after the civil war, and with the termination of slavery, the south was faced with a big problem; what was supposed to happen and how they were supposed to deal with the freedom and the rights that black people and freed slaves had gained as a result of the north defeating the south and forcing the end of slavery. first, most, if not all, of the workforce of the south came from slaves and they did not have an option to replace the loss of said workforce. second, particularly in the south, people were convinced that black people were lesser, less intelligent, less capable and less smart than whites. this posed a huge problem for them. also, southerners were faced with another issue; freed slaves now had a say in how their lives would be lived and the right to politically choose the way they would be governed. people in the south did not want to accept this, none of this and this opposition and the conflicts that arose from it, not to mention the afereffects of the war, forced the congress of the time to enact and enforce the reconstruction plans that had been proposed by president andrew johnson.