premise: Each of the seven members of the board of directors—Guzman, Hawking, Lepp, Miyauchi, Upchurch, Wharton, and Zhu—serves on exactly one of two committees—the finance committee or the incentives committee. Only board members serve on these committees. Committee membership is consistent with the following conditions: If Guzman serves on the finance committee, then Hawking serves on the incentives committee. If Lepp serves on the finance committee, then Miyauchi and Upchurch both serve on the incentives committee. Wharton serves on a different committee from the one on which Zhu serves. Upchurch serves on a different committee from the one on which Guzman serves. If Zhu serves on the finance committee, so does Hawking. If Miyauchi and Wharton both serve on the finance committee, then which one of the following could be true?
hypothesis: Zhu and Upchurch both serve on the finance committee.