Which controversial marketing strategy did 23andMe use in 2013 that led to FDA intervention and ultimately transformed the direct-to-consumer genetic testing industry?

In the competitive world of scientific innovation, marketing strategies can make or break a groundbreaking discovery's impact. From pharmaceutical launches to revolutionary laboratory equipment, the way scientific products are introduced to the market often determines their adoption rate and ultimate success. This trivia question explores a fascinating case study in scientific product marketing that changed an entire industry's trajectory.

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Offering medical diagnostic claims without FDA approval
Implementing a freemium model that gave basic genetic information for free
Using celebrity endorsements claiming genetic optimization
Creating artificial scarcity by limiting test kits to 10,000 per month