Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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you may not sell , transfer or assign your account or its contractual rights , licenses and obligations , to any third party ( including , for the avoidance of doubt , permitting another individual to access your account ) without the prior written consent of linden lab . 

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