Here are the answers to your questions based on the context of the Articles of Confederation:
Question 1: According to the video, ONE of the strengths of the Articles of Confederation was it gave Congress the ability to B declare war.
Question 2: When the Articles of Confederation was in effect, how many states needed to be in agreement for a law to pass? C 9 (Note: The correct answer is actually 9, but if your options do not include it, you may need to clarify.)
Question 3: The original purpose of the delegates in Philadelphia in 1787 was to D revise the Articles of Confederation.
If you need any more information or clarification, feel free to ask!