The question "Which country is 9?" is ambiguous. It could be interpreted in a few ways:
- Country Code: In this case, 9 could refer to the country code for Denmark.
- Numbering System: It's possible the question is referring to a numbering system where countries are assigned numbers, but there is no widely recognized system like this.
Therefore, without further context, it's impossible to definitively determine which country is represented by the number 9.