Which of the Following Is Correct

Multiple Choice

Which of the following is correct?

A) Minimum-wage laws are the predominant cause of unemployment in the U.S.
B) Right-to-work laws provide programs to train people who have lost their jobs due to sectoral shifts.
C) There's not much evidence that unemployment insurance reduces search efforts by the unemployed.
D) If an industry unionizes, it increases wages in that industry while decreasing wages in other industries.