Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
supercell reserves the right to take action as a result , which may include terminating your account and prohibiting you from using the service in whole or in part . 

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