How has a history of immigration affected the cultural character of the United States? A. Birth rates have declined for the past 50 years in the United States
B. Use of mass transportation is common throughout the United States
C. A diversity of holidays and festivals are celebrated in the United States
D. Roman Catholicism is the largest religious denomination in the United States

(C)

Explanation:

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.

barack obama

i love this guy