Mod·al verbnounGRAMMARplural noun: modal verbsan auxiliary verb that expresses necessity or possibility. English modal verbs include must, shall, will, should, would, can, could, may, and might.
Answer:
He sought to emphasize the historic nature of the events at Pearl Harbor, implicitly urging the American people never to forget the attack and memorialize its date.
Explanation:
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C.lesser to greater is answer
The main purpose was to justify the Indian Removal Act.