Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
if we make changes , we will give a notification to you via email or by other appropriate means ; if you do not object to these changes within 4 weeks after they have been communicated to you , the changes will be deemed to be accepted ( the notification will inform you accordingly ) . 

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