A \( x + \frac{1}{x + 1} + \frac{5}{x^{2} - 2 x + 1} \)
B \( x + \frac{1}{3 \left ( x + 1 \right )} - \frac{x + 1}{3 \left ( x^{2} - x + 1 \right )} \)
C \( x + \frac{5}{x + 1} + \frac{9 x}{x^{2} + 3 x + 5} \)
D \( x + \frac{5}{x + 1} + \frac{9 x}{x^{2} + 3 x + 5} \)