Final answer:
The correct answer is option 1. The new Progressive Party supporting Theodore Roosevelt in the 1912 election was known as the Bull Moose Party, named after Roosevelt stated he felt 'as strong as a bull moose.'
Step-by-step explanation:
The new Progressive Party, formed to support Theodore Roosevelt in the 1912 presidential election, was commonly referred to as the Bull Moose Party. This nickname originated from a comment made by Roosevelt himself, declaring he felt 'as strong as a bull moose' after surviving an assassination attempt.
The Progressive Party was emblematic of a shift in the American political landscape, as it sought comprehensive reforms, aiming to make the government more responsive to the will of the people and address issues such as women's suffrage, labor laws, and political corruption.