Answer:
its either b or c
Explanation:
primary sources are real evidence, like the actual document of the constitution, not a copy of it.
Puerto Rico was not a scene of battle between Spanish American War.
John Jay's Treaty, 1794–95. ... Thetreaty proved unpopular with the American public but did accomplish the goal of maintaining peace between the two nations and preserving U.S. neutrality. John Jay. Tensions between the United States and Britain remained high after the Revolutionary War as a result of three key issues.
Anne Frank, the diary of a young girl.
The correct answer is D, opportunity costs. Making (economic) decisions requires trading off one good, service or experience against another. Most of us cannot acquire everything we want, so often we have to make decisions on what to buy or how to invest our limited resources - eating out or going to the movies, buying that video-game or saving the money for a new bicycle, traveling to the mountain or to the beach. By choosing one rather than the other, we are trading off, that is, making a sacrifice and renouncing to our other preferred choice. In these examples, if you decide to go to the movies, the opportunity cost is the loss of the possibility of eating out.
