Starting Hull House in Chicago is best known for immigrants who's from European countries
<u>Explanation:</u>
Hull house was a house that was established in Chicago in the United States in the year 1889 and was founded by Jane Addams and Ellen Gates Star. This house was basically made for a noble cause to help housing the poor people which was basically was for the immigrants who had come from the European countries. Soon it expanded to a huge 13 buildings and gave place to at least 500 people to live. It had very innovative social, and educational programs.
This one is tricky, because scientific law can explain an observation, or be used to make a prediction, but I believe that C. is the most correct of the 4 answers.