Answer:
I'm 99% sure the answer is D. Virginia
The nations that fielded jet fighters during world war ii were: Germany, United Kingdom, United States, Japan, and the Soviet Union.
World war ii became the first war when jet aircraft was used in combat. Back then, the nations that could use this technology are only the leading industrialized nations.
Jonas Salk<span> </span><span>was an American </span>medical researcher<span> and </span>virologist<span>. He discovered and developed one of the first successful </span>polio vaccines in the 1950's.
Hope I helped. :)
The obvious answer would be business leaders. The reason why this is true is becaus business leaders were often the ones who were touting the ideas of social darwinism and how their company is better and will stomp out the smaller one in proper sociodarwinistic fashion.
