It is so that the federal government can't impose excessive bail, excessive fines, or cruel and unusual punishment.
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The correct answer is a mixed economy.
A Mixed Economy is one where there is a mix of private and public enterprises present. Since the question indicated that there are private enterprises as well as public transportation and electricity, this is an example of a mixed economy.
You only hang with people the same religion that you are
I believe the answer is: providing an additional choice for students on restricted diets.
Vegetarian menu tend to provide an option for various source of vitamin and minerals that might not exist on a typical high school lunch menu. It also might help the students with higher bmi index and higher cholesterol level who need to restrict their food intake before putting themselves on health risks.