Which constitutional principle is reflected in the way that speed limits are set in the U. S.?
A Federalism
B. Individual rights
C. Separation of powers
D. Checks and balances

I would say C because it makes more sense to me than the others

the manhattan project's indispensable man

barrio is a spanish word meaning neighborhood. in spain, several latin american countries and the philippines, the term is also used officially to denote a division of a municipality while a ghetto is a part of a city in which members of a minority group live, typically as a result of social, legal, or economic pressure. the term may have originally been used in venice to describe the part of the city to which jews were restricted and segregated.