The correct answer is D) Ireland.
In contrast with earlier waves of immigration, many immigrants in the first half of the 1800s came from Ireland.
This is true because Irish people suffered from a serious problem called the Great Hunger. Some historians identify this problem as the Irish Potato Famine of 1845. A fungus that spread all over the farm fields of Ireland affected the crops. But the severity of the fungus was that it ruined the potato crops for the next seven years. This situation caused famine in Ireland and thousands of people die, while others decided to emigrate to the United States.
The other options of the question were A) Africa. B) Britain. C) France.