Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
fitbit may , in its sole discretion , alter , remove , or refuse to display any of your content , and may forbid you from posting , uploading , storing , sharing , sending , or displaying your content to and via the fitbit service . 

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