According to consumer psychology research, which factor most significantly determines the effectiveness of a celebrity endorsement on product sales?

Celebrity endorsements have been a cornerstone of marketing strategies for decades, but how well do you understand their impact on consumer behavior? This trivia question explores the fascinating intersection of star power and purchasing decisions. Test your knowledge about how famous personalities influence the products we buy and the brands we trust.

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The perceived authentic connection between the celebrity and the product
The number of social media followers the celebrity has
The physical attractiveness of the celebrity
How recently the celebrity has won major awards