PLZ HELP TEST DUE TODAY! How are World War II and the postwar period connected to the current population of the United States?

(A.)A postwar baby boom led to the birth of 77 million people who today have children and grandchildren of their own.

(B.)Women outnumber men by two to one in the United States because of the large number of young men who died during World War II .

(C.)The population of the United States has never recovered from the large number of causalities suffered during World War II .

(D.) Many American soldiers decided to settle in Europe after World War II , leading to a population decline in the United States.