The calendar was changed is the right answer
The Continental Congress created the Continental Association, an agreement to boycott British goods. Additionally, it was decided that if the Coercive Acts were not reversed after a year, goods were to stop being exported to Great Britain as well.
Give the large amounts of sugar and other goods brought to New England through triangle trade, North America would have benefited most. The Caribbean received manpower in the form of slaves from Africa, while Africa sold its mapower in exchange for goods (lots of rum), meaning it most likely benefited the least.
