Why did the first government not work

The central government couldn't collect taxes to fund its operations. The Confederation relied on the voluntary efforts of the states to send tax money to the central government. Lacking funds, the central government couldn't maintain an effective military or back its own paper currency.

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).

c, because the american revolution was from 1765 to 1783.