Mostly, the Europeans dominated because their numbers or military technology and organization were superior.
Considering the alternatives, the only alternative that represents any sort of military power being evolved with it is:
d. They built infrastructure to keep military units traveling and intimidating the locals.
Also, the British and other countries did build many railroads in Africa.
Answer:
many states were resisting the Civil rights for African Americans with their own discriminatory laws.
Explanation:
One way in which federalism has evolved from the New Deal to what it has become today is that many of the government programs that were intended to "jumpstart" the economy during the Great Depression--such as the WPA--have shifted into programs like Medicare and Medicaid, which provide federal assistance to people on a regular basis.