The opportunity cost in the scenario is the second pair of jeans that Gretchen was planning to buy. Since the expected cost of the guitar amplifier was higher, she had to "let go" of the opportunity to have two pairs of jeans in order to afford the rest of the things the she still wanted to get.<span />
The correct answer in this question is B - for the first time, ordinary citizen could participate directly in government.
The reason for this is that when people started directly voting, they had more power and could directly see who will be in power in the futue as well. This in turn made them more "powerful" as they could directly influence who would be in charge of the city.
Answer:
A.) It helped them find their way to new countries by land and water
Explanation:
The system of checks and balances in government was developed to ensure that no one branch of government would become too powerful. The framers of the U.S. Constitution built a system that divides power between the three branches of the U.S. government—legislative, executive and judicial—and includes various limits and controls on the powers of each branch.