Simplify (frac{1}{1x} + frac{2}{1+x})

A.
(frac{x+3}{1x^2}) 
B.
(frac{x3}{1+x^2}) 
C.
(frac{3x}{1x^2}) 
D.
(frac{3x}{1+x^2})
Correct Answer: Option C
Explanation
(frac{1}{1x} + frac{2}{1+x}\
frac{1+x+22x}{(1x)(1+x)} = (frac{3x}{1x^2}))