Answer:
The arguments for imperialism included the US and Europe's desire to find new sources of raw materials, establish new markets for trade, spread Christianity and Western ideas, and create strategic military bases. The arguments against imperialism included the idea that imperialism was un-American and a fear of immigration to the US from colonized areas.
I believe the answer is A
The Roman Constitution called for the government to be made up of the senate, the legislative assemblies, and the executive magistrates. This is an example of the separation of powers.