Follow the steps for graphing a rational function to graph the function Upper R left parenthesis x right parenthesis equals StartFraction x squared plus 13 x plus 40 Over x plus 8 EndFraction Determine the behavior of the graph on either side of any vertical asymptotes, if one exists. Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. A. It approaches infinity on one side of the asymptote(s) at xequals enter your response here and minusinfinity on the other. It approaches either infinity or minusinfinity on both sides of the asymptote(s) at xequals enter your response here. (Type integers or simplified fractions. Use a comma to separate answers as needed. Type each answer only once.) B. It approaches either infinity or minusinfinity on both sides of the asymptote(s) at xequals enter your response here. (Type an integer or a simplified fraction. Use a comma to separate answers as needed. Type each answer only once.) C. It approaches infinity on one side of the asymptote(s) at xequals enter your response here and minusinfinity on the other. (Type an integer or a simplified fraction. Use a comma to separate answers as needed. Type each answer only once.) D. The function has no vertical asymptote