Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
if at any time supercell chooses , in its sole discretion , to monitor the service , supercell nonetheless assumes no responsibility for user content and assumes no obligation to modify or remove any inappropriate user content . 

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