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.
The amount of years for service varied and was decided by the contractor, for adults it was typically around 4 to 7 years but it wasn't always only seven years.
