The United States ranks far behind countries such as Sweden and Canada when it comes to workplace safety.
Statements
The US is way worse than Sweden and Canada when it comes to workplace safety.
However, all three countries have found that joint labor-mgmt committees on workplace safety greatly reduce workplace injuries.
In the US, only a few companies have these committees (these companies voluntarily created them). In Sweden and some of Canada, these committees are required for any company medium sized or bigger.
Evaluate
The information identifies a Causal Difference-Maker: these labor-mgmt safety committees cause safer workplaces.
The information describes two differences: US has fewer of these committees than Sweden / Canada do. US ranks way behind Sweden / Canada in workplace safety.
Inference questions love to use a difference to explain a difference.
It seems like one of the reasons the US ranks way behind Sweden / Canada is because these safety-improving committees are less common in the US than in the other two countries.
Goal
Look for a safely worded answer that reinforces this idea that having fewer joint labor-mgmt committees in the US is a reason why the US ranks lower in workplace safety.