Final answer:
King George III did not accept the messages or petitions from the colonial delegates, leading to a further deterioration in relations and the eventual declaration of rebellion by the Crown.
Step-by-step explanation:
King George III did not agree to the delegates' message as presented in the various petitions from the colonies, including the Olive Branch Petition. Despite the First Continental Congress referring to George III with respect and considering themselves British subjects, by May 1775, the king's proclamation declared the colonies to be in open rebellion.
The Conciliatory Proposition from Lord North was seen by the colonies as unsatisfactory, not meeting their demands and asserting Parliament's right to tax them under the guise of regulating trade. The aggressions at Lexington and Concord had also already sparked the beginnings of armed conflict, indicating that a peaceful resolution was becoming increasingly unlikely.