Who was the first U.S. President to die in office?
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George Dubya
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William McKinley
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William Henry Harrison
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Rutheford B. Hayes
C
Correct answer
Explanation
William Henry Harrison was the first U.S. President to die in office in 1841, just 31 days after his inauguration. He died of pneumonia, setting a precedent for presidential succession that would later be formalized through the 25th Amendment.