According to a study, what is the typical outcome from filing a formal sexual harassment complaint? ...

According to a study, what is the typical outcome from filing a formal sexual harassment complaint?
 
  a. About one half of those who filed complaints felt that it made things better, and about one third felt that the complaint process made things worse.
  b. About three fourths of those who filed complaints felt that it made things better, and only a minority of people felt that the complaint process made things worse.
  c. About three fourths of those who filed complaints felt that it made things worse, and only a minority of people felt that the complaint process made things better.
  d. About three fourths of those who filed complaints felt that it made things worse, and only a minority of people felt that the complaint process made things better; but only if the work environment was overwhelmingly male dominated; otherwise, it was a more even split between a better or worse outcome.