Each time you shade your eyes...you'll know you've made the world brighter for someone else.
This is the correct answer because it appeals to the reader's emotions. Most likely people want to make the world a brighter place. The appeal is stating that if you wear those shades, it will make the world a brighter place. This is of course not actually true or factually based. The advertiser hopes that the appeal will entice buyers to purchase Stylin' Shades over any other options.