How did John Adams help persuade the delegates to sign the Declaration of Independence? He told the delegates the French would help if they signed it. He never gave up and spoke convincingly about independence. He threatened delegates who were opposed to independence. He wrote much of the document with Thomas Jefferson.

John Adams never gave up and spoke convincingly about independence. A firm will was there in the mind of John that the nation will definitely be free from the slavery of doms.

The delegates were convinced after continuous efforts of John Adams to not give up.

Hence option B is correct that he never gave up and spoke convincingly about independence.

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Correct answer is He never gave up and spoke convincingly about independence.

Explanation:

First option is not correct as France wasn't willing to join the war yet. It happened after the battle of Saratoga.

Second option is correct as Adams beside being one of the founding fathers was one of the greatest supporter of independence.

Third option is  not correct as this were never his methods.

Last option is not correct as Jefferson was the author of the text.

answer; /// i believe that the correct answer is (d)the huang he river valley;