As a digital marketing specialist, you are tasked with optimizing a Google Ads campaign for a luxury watch retailer. The goal is to prevent ads from appearing in searches that are likely to be made by users looking for lower$-$cost alternatives. Which set of negative keywords would be most effective to add to the campaign to achieve this objective?

$[$Expensive watches$],[$Exclusive watches$],[$Premium watches$]$

$[$Watch reviews$],[$Watch comparisons$],[$Best watches$]$

$[$Watch repair$],[$Watch batteries$],[$Watch bands$]$

$[$Cheap watches$],[$Discount watches$],[$Watch deals$]$