Which retail data analytics technique was first widely adopted by presidential campaigns to revolutionize voter outreach and has since become standard practice in political campaigning?

Political campaigns and government agencies increasingly rely on sophisticated retail data analytics to understand constituent behaviors and preferences. This trivia tests your knowledge about how modern political operations leverage retail-style data analytics for voter outreach, campaign messaging, and public service optimization. Do you know how the public sector is adopting techniques pioneered by retail giants?

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Microtargeting based on consumer purchase history and demographic data
Blockchain verification of voter registration
Real-time inventory management of campaign merchandise
NFC-enabled mobile donation platforms