Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
if any part of this agreement is found to be invalid or unenforceable , that part of the agreement will no longer apply . 

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