Analyze the relationship between 'Facebook' and 'Mark Zuckerberg' within the context of the input sentence.
Options: chief executive officer, subsidiary, creator, founded by

New Delhi, Sep 29 (IANS) Facebook on Tuesday sought to clarify on the controversy over support for "Digital India" -- which chief executive Mark Zuckerberg had solicited -- also translating into support for the much-criticised Internet.og initiative of the social networking giant.
creator