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 . 

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