8. Who makes the highest bid for Sayuri's mizuage?
From Quiz Memoirs of a Geisha
Answer:
The baron
The baron is Mameha's danna (patron), so she understandably lets Dr. Crab win the bidding.
Sayuri first meets Dr. Crab when Mameha orchestrates a meeting by having Sayuri cut her own leg. She gets taken to be treated by Dr Crab, who is won over by Sayuri's blue eyes. Hatsumomo tries to sabotage Sayuri by spreading lies about her, but Sayuri's performance, and her conversation with Dr Crab, win him over again.
At the baron's blossom-viewing party, he compromises Sayuri's reputation by undressing her. His bidding for her mizuage proves to Mameha that he didn't go any further.
Nobu (the Chairman's business partner) doesn't usually like geisha, but, like with most other men, she wins him over. He doesn't join in the bidding as it would go against his principles and pride.
The Chairman sees that Nobu is interested in Sayuri and so, despite being in love with her, doesn't act. Nobu had saved his life in Manchuria.