Hyacinth was sent to a Sotheby's auction to bid on a Marc Chagall Lithograph for her employer, Renaud Galleries. Hyacinth purchased a Marc Chagall Lithograph for $18,000. Unfortunately, there were several lithographs for sale, and she did not purchase the one her employer wanted. Renaud Galleries refused to pay, and Sotheby's filed suit. ? ? What is the argument for Sotheby's?What is the argument for Renaud Galleries?Is Renaud Galleries liable for the act of its agent?