The correct answer is C. The political party function that involves it selling its candidate is to run a political campaign.
A political campaign is an organized effort carried out to influence the decision of an electoral process in a specific group of voters, which may be that of a city, state or country, or to a certain sector of the population. In democracies, campaigns often refer to electoral campaigns where representatives are chosen or a referendum is decided. A political campaign also includes efforts to alter the policy or ideology of any institution.
It was the start of the large powerful American military before WW1 the Entirety of the United States Armed Forces could fit in Yankee Stadium now it is over 1 million members strong
