The correct answer is B) New York.
New York was the major American city that was best known for housing immigrants during the 1840s.
In 1840, many Irish People decided to immigrate to the United States due to the problems they had with their failed crops. Millions of people died in Ireland due to starvation. Many others decided to emigrate. The Industrial Revolution in America was blooming and factories offered many job opportunities that were very attractive for immigrants.