The correct answer is:
A. He appealed to people that disagreed with the pace of cultural change but were not politically engaged.
Richard Nixon's campaign capitalized on the sentiments of many Americans who were uncomfortable with the rapid social and cultural changes of the 1960s. He sought to rally support from what he termed the "silent majority," which were individuals who felt marginalized and sought a return to more traditional values, without necessarily being deeply involved in the political process.