The Federal Government Is Required to Build a Border Fence

The federal government is required to build a border fence along the U.S. and Mexican border. As construction began, several environmental groups brought suit because the Army Corps of Engineers and the Department of Homeland Security had not complied with federal law. Which of the following federal laws would the two agencies have to comply with before constructing the wall?

A) They would need to do due diligence on the land before building the fence.
B) They would need to do an EIS.
C) They would need to designate any area where the fence is located as a brownfield.
D) Both b and c