What is the nhpa? adapted from fish and wildlife service before there was a national preservation policy, early preservation was organized by citizen groups. these groups were interested in saving historically significant sites in their community. the historic preservation plan grew in the years following world war ii. it was during this time that the construction of the interstate highway system and the urban renewal program increased the number of cultural sites being destroyed. the national historic preservation act (nhpa) was signed into law by president lyndon b. johnson on october 15th, 1966. it required government agencies to develop historic preservation programs. it also called for a strong domestic policy protecting important places in the united states. this legislation provides legal guidelines for the conservation of historic structures and sites around the nation. historic properties are valuable resources that generate public interest and support local economies. our nation's commitment to the protection of historic properties was reaffirmed through an executive order named preserve america. this order supports the preservation of our nation's cultural heritage. preserve america urges cooperation and encourages partnerships in local communities. much of the preservation work done on fish and wildlife service (fws) land was made possible by our many friends, groups, and partners. furthermore, it establishes a system that promotes better accountability for the identification, use, and protection of historic properties. a commitment to cultural and historic resources ensures that they remain a part of our national identity. the protection of america's heritage is important because it maintains a connection to our past, but it can feel like an uphill battle. although the mission of the united states fish and wildlife service is to "work with others to conserve, protect, and enhance fish, wildlife, plants, and their habitats for the continuing benefit of the american people," our natural world can't be separated from our cultural history. the fws is responsible for saving the stories of the people before us and sharing how they used the land. visitors can learn about our country's cattle ranching history. they can see threatened pupfish in a warm-water spring by a cabin that was inhabited by a famous drifter. additionally, they can visit the worm plots on patuxent national research refuge where environmental science was forever changed. therefore, these places form a part of our shared identity as americans.

which sentence from the passage supports the idea that local efforts play an important role in protecting historical places?
a.
this legislation provides legal guidelines for the conservation of historic structures and sites around the nation.
b.
therefore, these places form a part of our shared identity as americans.
c.
these groups were interested in saving historically significant sites in their community.
d.
the fws is responsible for saving the stories of the people before us and sharing how they used the land.