The correct answer to this open question is the following.
All of the following factors lured people to the United States from European and Asian nations in the late 1800s except "shortage of good farmland."
European immigrants entered the United States in those years through the Immigration Station located on Ellis Island, New York. Immigrants left their native countries because they wanted to find better living conditions for their families and the industries and fabrics in the US were offering jobs in the textile plants and manufacturing plants.