The president's amnesty power pardons those who have violated the law.
The president's clemency power can only be used in cases of state offenses.
This is a democracy due to that when this country rose against England, it was motivated to have a say in government and laws which it felt were unfair and had people to give them say in government affairs. Hence, this a representative democracy. Citizens vote for their government officials and the checks and balances prevent one branch from having too much or too little power. These officials represent the citizens' ideas and concerns in government.
The correct answer here would be C. The usual story goes that Confederation Congress only assigned them to propose the amendments to the Articles but instead they created an entirely new document. This is their reason, among others but none of them are correct as the Convention did not exceed its authority. The Confederation Congress for one was not a government in the true sense of the word. It was more an alliance like NATO. The convention was a also a meeting about just more than the Articles. The convention was beyond the Congress and its opinion was nothing more than that, just an opinion. Furthermore all 13 states ratified the Constitution. So no the Convention did not exceed its authority.