Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
we reserve the right 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 our defense of such claim . 

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