Look at the array that is shown below. $($The image is of five rows of $10$ zeros. The zeros in each row are close together, but the rows have a significant space between them.$)$

$0000000000$

$0000000000$

$0000000000$

$0000000000$

$0000000000$

We tend to perceive this as an arrangement of horizontal rows rather than as vertical columns or as diagonal patterns because of the Gestalt grouping principle of:

Group of answer choices