Before the First Crusade, Anna Comnena, historian and daughter
of the Byzantine emperor, worried
about how the Crusades might
affect the empire. What
information in your reading
supports her concern?

i believe the answer is d.

the phenomenon that would be cited as evidence of increased economic interdependence between europe and the americas is  the development of mercantilism.

this theory suggests that the wealth of a country depends on its economic assets, or capital.

hope this : )

no one really purchased it themselves, it was all america, they had debates etc.