Which of the Following Is True About Stewards

Which of the following is true about stewards?

A) Stewards explain to employees how the union and the collective bargaining agreement are disadvantageous.
B) Stewards make employers aware of union activities and try to forbid new members from getting involved.
C) To demonstrate majority support to represent employees,stewards must be able to explain to present and potential members the gains the union has previously negotiated.
D) Personal contact by the steward in socializing new members to the union appears to be of least significance than formal programs.