Final answer:
King George III considered the members of the Continental Congress to have committed treason and would have had them hanged if captured.
Step-by-step explanation:
The response of King George III to the actions and documents presented by the members of the Continental Congress was one of disdain and the belief that they had committed treason. After the Declaration of Independence was drafted and presented, the King viewed the signers as traitors to the Crown. Had the British succeeded in capturing them, they most likely would have been transported back to England to face execution by hanging. The King's proclamation on August 23, following the skirmishes at Lexington and Concord and the Olive Branch Petition, declared the colonies in 'open and avowed rebellion', clearly indicating his stance that they had committed a treasonous act.