Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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linden lab reserves the right , upon reasonable notice , to ( directly or through an applicable payment service provider ) : ( i ) charge for access to some or all of the service , charge for access to premium functionality or content on some or all of the website , require a free or paid subscription ( `` usage subscription '' ) , or account registration to access some or all of the service ; ( ii ) change terms and conditions for the service or portions thereof ; and ( iii ) restrict access to the service or portions thereof , in whole or in part , based on any lawful eligibility requirements linden lab may elect to impose ( e.g. geographic or demographic limitations ) . 

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