1 What is the domain of g(x,y) = -? xy Select the correct choice below and fill in any answer boxes within your choice. OA. {(x,y): y (Use a comma to separate answers as needed.) OB. {(x,y): x (Use a comma to separate answers as needed.) x# OC. {(x,y): x and y # (Use a comma to separate answers as needed.) OD. R2