If We Were to Compare the Hourly Earnings of Union

If we were to compare the hourly earnings of union and nonunion workers in recent years, we would find that

A) unions have not succeeded in raising the hourly incomes of their members above nonunion members.
B) unions have succeeded in raising the hourly incomes of their members above nonunion members.
C) state government unionized employees have earned less in hourly wages than nonunion government employee.
D) union members have increased their hourly incomes, but are still below the hourly incomes of nonunion members.