In 2015, the U.S. Unionization Rate Was

Multiple Choice

In 2015, the U.S. unionization rate was

A) 5.5 percent, down by nearly one-half from the rate in the mid-1950s.
B) 16.4 percent, up by about one-fourth from the rate in the mid-1950s.
C) 11.1 percent, down by more than one-half from the rate in the mid-1950s.
D) 22 percent, down by 3 percentage points from the mid-1950s.