$($From the left to the right$)$ Which answer shows the levels of memory in a computer system$$s memory hierarchy sorting from the fastest and smallest:

$1.$ Registers $->$ Cache $->$ Main Memory $->$ Disk Storage.

$2.$ Registers $->$ Main Memory $->$ Cache $->$ Disk Storage.

$3.$ Cache $->$ Registers $->$ Main Memory $->$ Disk Storage.

$4.$ Disk Storage $->$ Main Memory $->$ Cache $->$ Registers.