It would be "C. multistory dwellings built alongside cliff walls" that is not an example of an environmental adaptation made by early peoples of the North American continent, since these people usually inhabited flat lands.
Black codes were restrictive laws designed to limit the freedom of African
The Radical Republicans opposed Lincoln's plan because they thought it too lenient toward the South. Radical Republicans believed that Lincoln's plan for Reconstruction was not harsh enough because, from their point of view, the South was guilty of starting the war and deserved to be punished as such.
The presence of various African groups in the Americas led to the development of multiracial and multicultural societies in various parts of the world.