Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
headspace reserves the right , at its own expense , to assume the exclusive defense and control of any matter otherwise subject to indemnification by you , and in such case , you agree to cooperate with headspace defense of such claim . 

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