The anwser c should be correct
Explanation:
Since the year Washington took office, the legal prerequisites for presidential candidates have remained unchanged. A presidential candidate must be a natural born citizen of the United States, have lived in the country for 14 years, and be 35 years old or older, according to the Constitution.
The correct answer would be B. the civilian conservation corps
It would be the oasis and aquifers provide water to the people. In the arid places people tend to supply by travelling around the desert and stopping in areas that has oasis and aquifers in order to replenish their water supplies. Also oasis and aquifers become stopping posts if it is a trade route for merchants and travelers in the arid regions.