Which iconic 1970s advertising slogan revolutionized fast food marketing by focusing on consumer customization and is credited with helping the company increase market share by 30% within a year?

Throughout history, certain advertising slogans have been so powerful they shaped consumer behavior for decades. These memorable phrases didn't just sell products - they transformed industries, created cultural touchpoints, and sometimes even altered language itself. This trivia question focuses on one of the most influential historical slogans that revolutionized marketing in its time and continues to impact how companies craft their messaging today.

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"Have It Your Way" (Burger King, 1974)
"You Deserve a Break Today" (McDonald's, 1971)
"Finger Lickin' Good" (KFC, 1970)
"Where's the Beef?" (Wendy's, 1976)