I think the answer is letter a. David Wilmot.
It is because Wilmot was known as the instrument in establishing the Republican Party in Pennsylvania and a driving force in the formation of the Republican Party.
Romans came from the Italian pensinsula and came to Britain in the early first century. It was a gradual process and they slowly started conquering the different parts of the British isles during that time.
Vikings came from the Northern parts of Europe and they started conquering the British isles in later periods.
Both came and wanted to conquer the lands, while Romans were 'established' conquerors and started governing these areas soon by spreading their culture etc. The Vikings on the other hand had pillaing more in mind and did more of that and did not govern that much from the beginning.
The answer is B (Socialist).
It would not be Private Entrepreneurs and Capitalist since they support private control of production. Socialism on the other hand believes that production should be controlled by the workers themselves.
Taxed them on alot of things