How do you factor the expression 8x^3+ 1?

$2 x + 1$ and $4 {x}^{2} - 2 x + 1$
$8 {x}^{3} + 1$
${\left(2 x\right)}^{3} + {1}^{3}$
$\left(2 x + 1\right)$ $\left(4 {x}^{2} - 2 x + 1\right)$ -------------{ $\left(a + b\right) \left({a}^{2} - a b + {b}^{2}\right)$ }