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 Write R(x) in lowest terms. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. R(x)equals enter your response here (Simplify your answer.) B. R(x) is already in lowest terms