What was the effect of the Bull Moose Party's entrance into the presidential election of 1912?

it prevented any of the three parties from winning a majority of electoral votes.
it stole votes from the other parties to win the election.
it split the republican vote and allowed the democrats to win.

The Bull Moose Party's entrance into the presidential election of 1912 split the Republican vote and allowed the Democrats to win. The split in the Republican Party between incumbent President William Howard Taft and former President Theodore Roosevelt, who formed the Bull Moose Party, divided the party's support and ultimately led to the election of Democratic candidate Woodrow Wilson.