Which counterintuitive pricing strategy became widely adopted by struggling retailers during the Great Depression, and is still used as a psychological sales tactic today?

The Great Depression (1929-1939) wasn't just a pivotal historical event - it also fundamentally transformed retail pricing strategies. During this economic catastrophe, businesses had to adapt their pricing approaches in unprecedented ways, creating lasting impacts on modern retail. This trivia tests your knowledge about one of history's most famous pricing phenomena that emerged during this turbulent era. Can you identify which pricing strategy became unexpectedly prominent during America's darkest economic period?

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The 99-cent pricing strategy (charm pricing), making items appear significantly cheaper by pricing just below whole dollar amounts
Subscription-based pricing models, where customers paid small weekly fees for access to essential goods
Premium pricing, where retailers intentionally raised prices on basic goods to project quality and stability
Time-based dynamic pricing, where prices would fluctuate throughout the day based on customer traffic