In digital marketing, what does "Last$-$Click Attribution" primarily emphasize, and what are its potential limitations$?$

$1.$ Last$-$Click Attribution emphasizes the first interaction a user has with a website and is considered the most accurate attribution model.

$2.$ Last$-$Click Attribution gives equal credit to all touchpoints in a customer's journey, providing a holistic view of conversion paths.

$3.$ Last$-$Click Attribution attributes all the conversion value to the final interaction before a conversion, potentially overlooking the influence of earlier touchpoints.

$4.$ Last$-$Click Attribution focuses exclusively on the time of day when users click on ads and ignores other user behaviors.