Which event marks the inception of the Council of Industrial Relations (CIR)?

The correct answer signifies a historical moment when the Council of Industrial Relations (CIR) was officially established in 1920. This year is significant as it represents the foundation of an organization intended to address issues regarding labor relations in the electrical industry. The establishment of the CIR played a crucial role in advocating for fair labor practices and ensuring that both workers' rights and industry standards were upheld.

In looking at the other choices, the formation of the NEBF refers to a separate initiative related to benefits and pensions for electrical workers but does not relate to the establishment of the CIR itself. The publication of the National Electrical Code is important for setting standards in electrical installations but predates the CIR by focusing on safety and regulations rather than labor relations. Lastly, the establishment of labor laws highlights the broader context of labor rights but does not pinpoint the specific inception of the CIR. Therefore, 1920 is the decisive year that marks the creation of the Council of Industrial Relations, establishing its pivotal role in the labor landscape.