They are considered sacred, because significant events to do with the religion happened there such as a prophet being there.
Generally speaking, policy plans created to address a societal problem can be adopted by any level of government (except usually the judicial branch). This happens most commonly in the legislature--either the federal or state legislatures depending on the societal problem in question. Hope I Helped!
It basically legalized segregation because they said that it did not violate the 14th amendment
The answer is C, Cecil Calvert! :) hope this helps!!