Find the domain of the following function. f( x,y) = 14-x - y2 . . . Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. O A. {( x,y ): x2 + yz # O B. {(x,y): x 2 + y? s O c. {(x,y): x2 + y2 2 O D. { ( x, y ) : X # and y # }(Use a comma to separate answers as needed.) O E. R2