During the twentieth century, the population of the United States ...

[melina_rosy]

During the twentieth century, the population of the United States experienced a profound change.
 
  a. It became older.
  b. It was beset with chemical abuse.
  c. The homicide rate doubled.
  d. Unemployment rates tripled.

Question 2

Teenagers are a very significant category in U.S. society because
 
  a. of chronic unemployment.
  b. they are an economic liability.
  c. they are a strong economic force.
  d. they increase the poverty level of their family.

[yifu223]

Answer to Question 1

a

Answer to Question 2

c

[melina_rosy]

Excellent

[helenmarkerine]

YES! Correct, THANKS for helping me on my review