Hey!
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Answer:
U.S. District Court
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Explanation:
The Diagram is showing the importance of each feature from the lowest court level to the highest court level. U.S. Supreme Court being of highest level, U.S. Court of Appeals being of intermediate level, and U.S. District Court being of lowest level.
Supreme Court - 9 justices.
Court Of Appeals - 12 courts across the country.
District Court - 94 districts across the country.
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Hope This Helped! Good Luck!