Bescuase of the nearly unbroken chain of cities that runs from boston to washington dc coastal region of the northeast is

trust me its B (a megalopolis) I took this quick check and got a 100% on it (1-C, 2-B, 3-D)-here all the answers to the test yw <3

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.

answer; financial accounting;