Which of the Following Statements Is Correct

Which of the following statements is correct?

A) Unemployment is more a more severe problem in the United States than in most European countries.
B) Most economists think that expansionary fiscal policies would not be very effective in dealing with unemployment in most European countries.
C) Unemployment problems in most European countries tend to be problems with short-term unemployment.
D) Labor unions in the United Stated have been more effective in gaining wage increases for their members than have labor unions in most European countries.