Final answer:
The third common appeal used in advertisements, in addition to fear appeal and sex appeal, is humor appeal. Humor appeals use jokes, funny situations, or comedic elements to grab the attention of the audience and create a positive association with the product or service being advertised.
Step-by-step explanation:
The third common appeal used in advertisements, in addition to fear appeal and sex appeal, is humor appeal. Humor appeals use jokes, funny situations, or comedic elements to grab the attention of the audience and create a positive association with the product or service being advertised. This type of appeal can be effective in breaking through the clutter of advertisements and making the brand more memorable.