Which fast-food marketing campaign is credited with increasing McDonald's burger sales by 40% in 1981 and forcing Burger King to spend $100 million on a counter-campaign?

In the competitive world of fast food marketing, certain campaigns have achieved legendary status, completely transforming brand perceptions and consumer behaviors. This trivia question focuses on one of the most famous food marketing rivalries that changed the fast food landscape forever. Test your knowledge of iconic food industry marketing campaigns that shaped how we think about and consume popular menu items.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

"Where's the beef?" (Wendy's)
"McDLT - Keep the hot side hot, and the cool side cool"
"You deserve a break today" (McDonald's)
"The Whopper beats the Big Mac" (Burger King's taste-test challenge)