Which of the following would most likely support ideals which included alleviating poverty, regulating big businesses, and enacting worker protection?

The Social Gospel is the correct answer.

Explanation:

The social gospel was a Protestant movement that applied christian ethics to social problems such as poverty, crime and racial inequality etc. It was well known early 20th century in Canada and US, the gospellers tried to put Lord's prayer into practise, they also believed that second coming would not happen unless and until people rid themselves as social evils. It was popular among clergy and the leaders were mostly related with the liberal wing of the progressive movement, its members were also associated with the liberal wing of progressive movement. Josiah Strong, Washington Gladden and Richard T. Ely were some of the famous members of The Social Gospel movement.

the answer is the social gospel