Answer:
1. (Article III) Federal Judges are appointed for life because that is how it was written into the US Constitution.
2. The writers of the Constitution gave federal judges job security because they wanted judges to be able to decide cases free from public or political pressures.
3. Federal judges know their jobs are safe even if they make unpopular decisions.
4. They can only be removed by impeachment
At one point, the value of the United States dollar was set according to the gold standard. One of these examples is the fixed exchange rate. The gold exchange standard guarantees the fixed exchange rate to the currency of another country that uses the gold standard.
The answer would be letter A.
None of these are correct