The answer is C. Because William Jennings Bryan who was heavily supported by populist during the election of 1896 said something about this during his "Cross of gold speech".
Iit protects against any branch of the government trying to abuse its power. This way all powers are shared and equal. This goes even for the president, he alone cannot mandate orders. It takes approval of branches (judicial, legislative, executive) to get to a deal. :)
Happy New Year!
Create new trade agreements
He was elected by popular vote, so I believe it would be C.