Final answer:
A consequence of less turnover in elections is the denial of opportunities for new candidates, and one reason to make voter registration more difficult is to decrease election fraud. Compulsory voting laws in countries like Belgium, Turkey, and Australia lead to higher voter turnout rates.
Step-by-step explanation:
A consequence of less turnover in elections is C) Denial of opportunity for new candidates. When there is low turnover, incumbent politicians tend to hold their positions for longer periods, making it difficult for new candidates to have a chance at being elected. This can decrease the diversity of ideas in governance and potentially leads to stagnation in political progress. As for voter registration, one reason states might make it more difficult is B) decrease election fraud. However, reducing barriers to voting is also important to encourage greater voter turnout, such as by making registration easier and extending voting hours or days. Increased voter turnout can, in theory, lead to more representative governance. Interestingly, countries like Belgium, Turkey, and Australia have higher turnout rates than the U.S., largely due to A) compulsory voting laws.