The landmark case Plessey v. Ferguson was significant because "<span>It showed that racial segregation was constitutional</span>" since this remained the case until Brown vs. Board of Education overturned it.
Answer: its B, C, E & F.
Explanation:
i just did it on edgenuity
It was a United States naval officer/ historian, also known to be a propagandist to expansion, named Alfred Thayer Mahan who wanted to expand the extent of capacity of the United States and its navy. He wrote “The Influence of Sea Power upon History”. It stated his idea that the countries with the biggest navies and greater sea power over others who could govern the world. With his principles, and knowing that US had at that time the elements of the capability to expand its greatness, he created strategies based on commerce trading and coastal defense to support the Manifest Destiny. Manifest Destiny states that it is the United States who was the ones who were destined to expand across North America.
