The answer is C is b/c sun exposure is completely natural unlike the followin answers.
Since they are talking about brand recognition and popularity, I would say D. perception accounts for mediocre products trumping quality. People go with the product they know or they think more people are using because it is perceived as a better product even though it may not be.
Is that the Lion King song? Or just nonsense?
a b c d e f g h I love you will you marry me