Which of the following tactics might public sector unions use to increase management's cost of disagreeing with the union position during bargaining? A. Threatening to release information about the dollar amount of liquor bills for government officials that are paid by taxpayers.
B. Threating to not endorse or work on behalf of a candidate favored by management in a political campaign.
C. Malicious obedience to the published work rules.
D. All the above are legal tactics that the union can use to pressure management to accept the union's position on an issue.