The general election campaign is likely to differ from the campaign for the party's nomination in that the candidates?
a.
are from different political parties
b.
generally represent real differences in governing philosophies
c.
must focus on creating broad coalitions of voters
d.
all of the above

D.

Nomination campaigns are for the party's candidate so all of the candidates for the nomination are probably representing that party.

Candidates for the nomination probably have similar philosophies but some different wants, where general election candidates have almost polar opposite ideals.

Creating broad coalitions of voters is almost a given, "Women for X" or "X will actually help Y people"

the answer is true!