Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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headspace may transfer its rights and obligations under these terms to any company , firm or person at any time if it does not materially affect your rights under it . 

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