What was the police's action in relation to the accident site?

The police's action in relation to the accident site was that they wouldn't let us enter the area. This response indicates that the police were managing the situation and likely prioritizing safety and security at the scene of the accident. By restricting access, they were ensuring that the area remained safe for emergency responders and preventing unauthorized individuals from interfering with the investigation or putting themselves in danger. Such measures are common at accident sites, where conditions may be hazardous or where sensitive information is being handled.

The other options suggest alternative actions such as guiding or allowing access to the area, which does not align with typical police procedure at an accident scene where safety and crowd control are important.