Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
your continued use of tripadvisor now , or following the posting of any such notice of any changes , will indicate acceptance by you of such modifications . 

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