Which market research innovation was first widely adopted by political campaigns before becoming standard practice in corporate marketing?

Political campaigns and government agencies increasingly rely on sophisticated market research to understand constituent needs and shape policy messaging. This poll tests your knowledge of how modern political operations have adopted corporate market research methodologies to gain electoral advantages and improve citizen engagement. How well do you understand the intersection of political strategy and market research techniques?

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Microtargeting voters using consumer data and psychographic profiles
A/B testing of advertisements and messaging
Focus groups for testing policy proposals
Real-time sentiment analysis of social media conversations