Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
you may not post , modify , distribute , or reproduce in any way any copyrighted material , trademarks , or other proprietary information belonging to others without obtaining the prior written consent of the owner of such proprietary rights . 

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