Which Statement Correctly Describes Ombuds

Which statement correctly describes ombuds?

A) They are used primarily during employment negotiating to help settle disagreements and to make a binding decision for them.
B) They are primarily used to investigate and help settle employee complaints between employers and employees fairly.
C) They are primarily used to help employers get workers.
D) They are primarily used to help businesses meet employee rights.
E) None of these statements is correct.