Final answer:
John Adams was helpful in getting the delegates to sign the Declaration of Independence by talking persistently and convincingly about the independence.
Step-by-step explanation:
John Adams was helpful in getting the delegates to sign the Declaration of Independence by talking persistently and convincingly about the independence. He used his persuasive skills to convince the members of the Second Continental Congress of the need for independence from Great Britain. Adams, along with Thomas Jefferson, drafted the Declaration, which included a long list of grievances against King George III. Adams' determination and skillful persuasion played a crucial role in convincing the delegates to sign the Declaration.