Answer:
Woodrow Wilson signed the act creating the national park service.
Story only time will tell if it repeats itself.
If this is during WWI then this could spread to widespread war because of the alliance systems
<span>the search by petroleum geologists and geophysicists for hydrocarbon deposits beneath the Earth's surface, </span>
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.
