Which of the following is equivalent to (5 /k) + ((k + 3) /(k + 5)) ?
A. (k +8) /(2k + 5)
B. (k + 8) /k(k + 5)
C. 5(k + 3) /k(k + 5)
E. (k^2+ 8k + 25) /k(k + 5)