The city council voted to hold a meeting regarding a clean indoor air ordinance, indicating which type of advocacy benchmark?

The scenario describes the city council's decision to hold a meeting about a clean indoor air ordinance, which exemplifies a shift in critical mass. This type of advocacy benchmark indicates that a significant number of stakeholders, including policymakers, community members, and advocates, recognize the importance of addressing the issue of clean indoor air. A shift in critical mass suggests that there's growing consensus and urgency around the topic, prompting formal discussion and potential action by a governing body.

This benchmark reflects an essential step toward policy change, as community engagement increases and more individuals or groups advocate for healthier environments. It highlights the power of collective awareness and support that can lead to meaningful changes in legislation or public policy.

In contrast, other options pertain to different aspects of advocacy. The focus here is specifically on the collective acknowledgment that creates momentum for discussing and potentially enacting policy changes, rather than on individual behavior changes or reframing issues.