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