One outcome of the social gospel movement was a
new kind of music.
settlement houses.
increased immigration.
taxation on the wealthy.

Well for this questionone outcome of the social gospel movement was settlement houses, which offered health care and day care to working mothers. The correct option among all the options that are given in the question is the first option. The Social Gospel movement was actually a Protestant movement that gained speed during the 20th century. 

Hope this helps you!