The most numerous of the non-English immigrants were the? Scotch-Irish
Pennsylvania Dutch
French Huguenots
Germans

Scotch-Irish

Explanation:

Scotch-Irish or Scot Irish is the way in which Ulster Protestants from Ireland are referred to in the United States. These were people who immigrated to America, mostly during the 18th and 19th centuries. Yet, immigration started early in the 17th century, and part of the reason for huge immigration was the try of King Charles I to force them to join the Church of England.

They were Protestants mostly from Northern Ireland and Lowlands in Scotland. At the time of the American revolution, around one-sixth of the population in America was Scot Irish immigrants – around 200 000 people. Most of them settled in Pennsylvania at first, and later they also came to New York and mostly worked in the factories. Part of them also moved to Canada.

c.) the country needed a stronger central government.