Answer:
B,
Explanation:
the kingdom was stable and at peace.
Answer;
C. a common language.
In the 1800s, an important motivation for both "old" and "new" immigrants to settle in ethnic neighborhoods was a common language.
Explanation;
The old immigrants came from the northern or western Europe while the new immigrants came from southern or eastern Europe.
Old immigrants were protestant while the new immigrants were Catholic , Orthodox or Jewish.