What is the value of \(\frac{1}{{{x^{\left( {p - q} \right)}} + 1}} + \frac{1}{{{x^{\left( {q - p} \right)}}\; + \;1}}?\)

What is the value of \(\frac{1}{{{x^{\left( {p - q} \right)}} + 1}} +

1.	What is the value of \(\frac{1}{{{x^{\left( {p - q} \right)}} + 1}} + \frac{1}{{{x^{\left( {q - p} \right)}}\; + \;1}}?\)
A.	0
B.	1
C.	x(p-q)
D.	x(p + q)
Answer» C. x(p-q)