Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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you may also be asked to click `` i accept '' at the appropriate place prior to your purchase of access to the products . 

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