I think the answer is D but I could be wrong
It was President Andrew Jackson who rewarded his supporters government jobs. In politics, it is called a spoils system or patronage system. The term was derived from the phrase "to the victor belongs the spoils" by New York senator William Marcy, referring to the victory of President Jackson. The term spoils means goods or benefits given by the winning party to its supporters.
Because if people believed the scientist the pope would not have control of the people.