Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
if you disagree with the revised terms , you may terminate this agreement with immediate effect . 

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