Consider an array initially given as $[5,1,4,2,8].$ What would be the state of this array after the $4$th iteration of the Bubble Sort algorithm?

$[1,4,2,5,8]$

$[2,1,4,5,8]$

$[1,2,4,8,5]$

$[5,1,2,4,8]$

$[1,2,4,5,8]$