Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
ncl is not obligated to monitor user-generated content . 

```
. OPTIONS: ['Arbitration' 'Unilateral change' 'Choice of law' 'Jurisdiction'
 'Contract by using' 'None' 'Unilateral termination' 'Content removal'
 'Limitation of liability'].