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