Break up the right way

Calculus Level 3

$\large \int \frac{dx}{x^6 + x^4} = \ ?$

Notation: $C$ denotes the constant of integration.

\frac { -1 }{ 3{ x }^{ 3 } } -\frac { 1 }{ x } +\ln { x } +C

\frac { -1 }{ 3{ x }^{ 3 } } -\frac { 1 }{ x } +\arctan { x } +C

\frac { 1 }{ 3{ x }^{ 3 } } +\frac { 1 }{ x } +\ln { x } +C

\frac { -1 }{ 3{ x }^{ 3 } } +\frac { 1 }{ x } +\arctan { x } +C