The best answer is
<span>because the president should not associate with the justices
The president should not wield his power to nominate justices as a tool for political power. The President should respect the independence of the judicial branch. To fill the Supreme Court with political allies would essentially give the president control over both the Executive and judicial branch. Indirectly, the power of his veto and the Supreme Court's power of judicial review would also give him great influence over the legislative branch as well. </span><span>
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The PPC (or PPF, same thing) shows economic growth because it outlines exactly what the economy can produce at that moment. When it shifts outward in any way (be it towards consumer and capital goods, or X and Y), that MUST be because of economic growth.
Both a and c are correct, however I think that A would be the most correct answer in this case.
A, you have to be born in the united stated to be eligible