B. child laborers and D. miners
Hope this helps :)
No, I believe that multiple weaknesses in the Articles of Confederation would have hurt America in time. One of the biggest problems was the lack of detail and specific attributes that the Constitution brings from long discussion and debates over what is best for the country. America needed to strengthen it's central government if it wanted to get anywhere, so we may not have become so powerful if we left the majority of the power in the state's hands. Another lacking component was the fact that we had no Executive branch to enforce Congress' laws and no National court to determine the meaning of the laws. Another example is the making of one currency for the entire country. These examples and more could have hurt America if they wouldn't have written the Constitution.
It caused the rip tides like rise of Hitler or the reason Italy and Japan fell to facism and the US went ahead did their own treaties with the defeated.