Find all local extrema for the function f(x,y) = e X(y +6) .. . . . Find the local maxima. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. There are local maxima located at (Simplify your answers. Type ordered pairs. Use a comma to separate answers as needed.) O B. There are no local maxima. Find the local minima. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. There are local minima located at (Simplify your answers. Type ordered pairs. Use a comma to separate answers as needed.) O B. There are no local minima. Find the saddle point(s). Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. There are saddle points located at (Simplify your answers. Type ordered pairs. Use a comma to separate answers as needed.) O B. There are no saddle points