The correct answer is A)the North.
The part of the country that had most Taft supporters was the North.
Theodore Roosevelt did not run for a second period and promoted the candidacy of William Taft.
William Taft (1857-1930) became the 27th president of the United States on March 4, 1909. In the 1908 election, he had the support of many people in the North and with the help of the popularity of Roosevelt, he had no problems to win the presidency. Taft was the creator of US foreign policy "Dollar Diplomacy" and "One DOor Diplomacy", to deal with Latin America and China affairs.