Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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this may include the opportunity for you to link your fitbit account , fitbit data , or the fitbit service with third-party services . 

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