Evaluate the limit. lim (x,y) -(8,8) *WIN Find an expression that is equal to f(x,y) = W / N w / - for all (x,y) in the domain of f, that will be better suited to find W/N the limit, if it exists. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. for all (x,y) in the domain of f. w/N WIN y (Simplify your answer.) O B. The function f(x,y) is already in a form suitable for finding the limit, if it exists