What is imperialism?
a.
the expansion of a nation's authority through territorial conquest
b.
the expansion of a nation’s authority through negotiation
c.
the expansion of a nation’s authority through power
d.
the expansion of a nation’s authority through the purchasing of property

The correct answer is A) the expansion of a nations’ authority through territorial conquest.  

Imperialism is the expansion of a nations’ authority through territorial conquest.  

Imperialism is the ideology or political belief that extended power of domination of other nation is a way to exert control and dominion of that territory. In the past, it was common for a powerful nation to invade the other nation and forced to follow its political and economic regulations. The powerful country considered that imperialism was the way to establish dominance in the international scene. Not only through the military, a country can have imperialistic practices. In could be through economic control and dependence that one powerful country can exert control over another one.