The population of the United States grew after World War II because

Choose one answer.

Aeconomic security encouraged people to start families.

Btelevision advertising emphasized the expectation for young couples to have large families.

Cadvances in science significantly expanded the life expectancy of Americans.

Dwaves of immigrants came to the United States from Asia after World War II.

Many teenagers sought release from the conformity of their suburban families through

Choose one answer.

Arock 'n' roll music.

Bfilmmaking.

Cshopping.

Ddrugs and alcohol.