The integral $\int {{{2{x^3} - 1} \over {{x^4} + x}}} dx$ is equal to : (Here C is a constant of integration)

Question

The integral $\int {{{2{x^3} - 1} \over {{x^4} + x}}} dx$ is equal to :
(Here C is a constant of integration)

${\log _e}{{\left| {{x^3} + 1} \right|} \over {{x^2}}} + C$

${1 \over 2}{\log _e}{{\left| {{x^3} + 1} \right|} \over {{x^2}}} + C$

${\log _e}\left| {{{{x^3} + 1} \over x}} \right| + C$

${1 \over 2}{\log _e}{{{{\left( {{x^3} + 1} \right)}^2}} \over {\left| {{x^3}} \right|}} + C$

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