The only answer that makes sense is C, Judicial review. The judicial branch specifically has the power to review laws passed by the legislative and executive branches and invalidate or amend them. Their main purpose in this process is to determine whether a law is constitutional or unconstitutional, and is a check against the other two branches.
A. Because the US for example is big and powerful because it has always been able to trade with different countries
To begin, it didn't promote "peace" as much as it promoted a "cold war" which is the whole point of the name, Cold War.
Nuclear Weapons essentially forced the US and the Soviet Union into an uncomfortable draw.
They knew they couldn't fight each other directly so they fought each other in a series of devastating proxy wars around the world.
The correct answer is Primary sources are first-hand accounts of events or time periods in history
The research project is characterized as an action to be developed, necessary in turn, and which foresees everything that will be developed through the research, that is, in it the researcher reveals his main intentions, explains the focus, the direction that the it will guide, express his real interests and highlight the questions that prompted him to proceed this way or that.