Even by the End of the 1948 Presidential Campaign, Almost

Even by the end of the 1948 presidential campaign, almost everyone expected Governor Thomas Dewey to win because

A) the Republicans had finally united their northeastern internationalist and midwestern isolationist wings.
B) Truman had run a listless and defensive campaign.
C) Dewey was such a charming and charismatic candidate.
D) President Truman seemed unpopular and the Democrats had split three ways.
E) the Republicans had developed a stronger and more progressive domestic platform.