Scots-Irish was the group which was facing economic ruin when Parliament forbade them from shipping their dairy products, woolens, and linens to English markets and immigrated to America. The last option is correct.
Scots-Irish immigrants settled in the American colonies from the 1600s.
However, the first major migration of Scots-Irish to America was a group that came with Rev. James McGregor from County Londonderry to New England in 1718.
The majority of the Scots-Irish who moved to America in the colonial period settled in Pennsylvania, Virginia, and the Carolinas.