Richard Nixon's Victory in the Election of 1968 Was Made

Richard Nixon's victory in the election of 1968 was made possible by what shift in voting behaviors?

A) African Americans turned on the Johnson administration and predominantly voted Republican.
B) White wage earners from both the North and South were increasingly voting Republican instead of Democrat.
C) Southern whites were increasingly voting Democrat, mainly due to issues surrounding foreign affairs.
D) Young adults failed to turn out to vote, and as a result, liberal candidates experienced a lack of support.
E) Most voters relied on information in television ads, and Nixon focused most of his efforts on a major television ad campaign.