Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
we will note the date that revisions were last made to the agreement at the bottom of this page , and any revisions will take effect upon posting . 

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