Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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the failure of supercell to require or enforce strict performance by you of any provision of these terms of service or the supercell privacy policy or failure to exercise any right under them shall not be construed as a waiver or relinquishment of supercell 's right to assert or rely upon any such provision or right in that or any other instance . 

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