"Old" immigrants came from countries such as A) Russia
B) Ireland
C) Austria
D) Italy

I think it's Ireland

Most of the old immigrants migrated from England, France, Ireland, and Germany. Many of these immigrants were culturally similar to each other, literate, and had some wealth. Most were Protestant, believed in democracy, and resembled each other physically.

food and resources were plentiful.

women were encouraged to marry later in life so they could work in factories.