Which advertising pioneer is credited with introducing psychological techniques to advertising in the 1920s, establishing the concept of creating consumer 'desires' rather than just addressing 'needs'?

Advertising has evolved dramatically throughout history, transforming from simple announcements to sophisticated psychological techniques. The foundations of modern advertising were laid by pioneering individuals who revolutionized how products were marketed to the public. This trivia tests your knowledge about a pivotal moment in advertising history that changed how companies approached consumer psychology and established techniques still used today.

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Edward Bernays, who applied his uncle Sigmund Freud's psychological theories to advertising campaigns
P.T. Barnum, who focused on sensationalist advertising to draw crowds to his attractions
Claude Hopkins, who pioneered scientific advertising through testing and measurement
Albert Lasker, who developed the concept of 'salesmanship in print' for advertising copy