Answer:
After the Pearl Harbor attack, and for the first time during years of discussion and debate, the American people were united in their determination to go to war. Three days later, Japan's allies Germany and Italy declared war against the United States.
Explanation:
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D. Castiglione
Cesare Borgia was the Son of the Pope and Cosimo de Medici's family ruled Florence, so neither have anything to do with the royal family of Mantua. Machiavelli wrote the Prince, so that is not the correct answer either. Castiglione was part of the Royal family of Mantua and did write the Book of the Courtier. So D is the correct answer.
More also opposed the king's separation from the Catholic Church, refusing to acknowledge Henry as Supreme Head of the Church of England and the annulment of his marriage to Catherine of Aragon. After refusing to take the Oath of Supremacy, he was convicted of treason and executed
I'm sorry if I'm wrong
A C D