All Except Which of the Following Statement About Unionization of Part-

All except which of the following statement about unionization of part- time workers is true?

A) There are sometimes legislative barriers in the way of it .
B) Part- timers are more apt to quit if they don't like working conditions than to try to improve conditions where they are.
C) Union membership rates among part- timers are roughly the same as among full- timers.
D) In many cases,employer opposition to unionization of part- timers is particularly strong.
E) Such workers tend to be costlier for unions to organize than full- timers.