Multiple choice

A sphere of radius r is inseribed inside a cube. The volume enclosed between the cube and the sphere is.

$\left( 16-\frac { 2\pi }{ 3 } \right) { r }^{ 3 }$
$\left( 22-\frac { 2\pi }{ 3 } \right) { r }^{ 3 }$
$\left( 8-\frac { 4\pi }{ 3 } \right) { r }^{ 3 }$
$\left( 12-\frac { 4\pi }{ 3 } \right) { r }^{ 3 }$

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