Which principle most directly limits the concentration of political power in democratic systems such as the United States?State control of major industries.Constitutional protections for individual rights.Government censorship.One-party political rule.

Constitutional protections for individual rights limit what the government can do and provide checks against the concentration of political power. State control of industries concerns the economy, while censorship and one-party rule tend to strengthen government control rather than limit it. The correct choice is constitutional protections for individual rights.

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