Ap government question: in what ways does a candidate gain visibility and generate mass appeal?

Running television ads, also known as spots, is one way to increase a candidate's visibility. Interviews with local channels for local races generate mass appeal. For federally elected candidates, the same plans of action are devised, but on a larger scale. Talk shows, news programs, and debates promote visibility and mass appeal.

Im pretty sure the answer is d.) is more densely populated.