Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
we may use user material for our internal business purposes , for example , to examine trends or categories or to promote , market or advertise headspace . 

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