Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
tripadvisor urges passengers to investigate and review travel prohibitions , warnings , announcements and advisories issued by the uk government , the european union ( eu ) and destination country governments prior to booking travel to international destinations . 

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