Find the slope of the line that is (a) parallel and (b) perpendicular to the line through the pair of points. (-5, -4) and (6,8) (a) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The slope of the parallel line is .(Type an integer or a simplified fraction.) O B The slope of the parallel line is undefined. (b) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The slope of the perpendicular line is (Type an integer or a simplified fraction.) O B. The slope of the perpendicular line is undefined