As an HR Professional you should be familiar with the terminology, practices, and rules governing union-based strikes. An organization utilizes union…

"Double breasting" is a term used in labor relations to describe a business strategy where a company operates two separate entities, one unionized and one non-unionized, often to compete for jobs by offering lower bids from the non-union side. When a union has a labor dispute with the unionized entity, it may choose to picket the non-union entity of the same company to apply pressure. This specific action is directly related to the double-breasting structure and is often referred to as double-breasting picketing.

B. Common situs picketing occurs when a union pickets a worksite shared by their primary employer and neutral, secondary employers. This scenario involves two operations of the same company.
C. Wildcat strikes are work stoppages by union members that are not authorized by the union leadership. The question describes a type of picketing, not the authorization status of the strike.
D. A sympathy strike occurs when a union strikes to support another union's dispute. Here, the union is striking over its own dispute with the employer.

1. Twomey, D. P. (2016). Labor and Employment Law: Text & Cases (16th ed.). Cengage Learning. Chapter 10, "Strikes and Boycotts," discusses various picketing types. The concept of double-breasting is explained as a strategy to have both union and nonunion operations, which can lead to complex picketing situations.

2. Harvard Law Review. (1983). Labor Law-Double-Breasted Operations-NLRB Adopts New Test. Harvard Law Review, 96(3), 762–769. https://doi.org/10.2307/1340831. This article discusses the legal framework and definition of double-breasted operations.

3. Fossum, J. A. (2015). Labor Relations: Development, Structure, Process (12th ed.). McGraw-Hill Education. Chapter 11, "Contract Administration," details various forms of union pressure tactics, distinguishing between primary, secondary, and common situs picketing, which helps clarify why double-breasting picketing is a distinct concept.