Final answer:
The King's reaction to the Olive Branch Petition was to ignore it.
Step-by-step explanation:
The King's reaction to the Olive Branch Petition was (C) to ignore the petition. The Olive Branch Petition was a final attempt by the colonies to avoid going to war with Great Britain during the American Revolution. Despite the colonists' plea for peace, the King refused to even read the petition and instead declared the colonies to be in open rebellion.
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