excellent harbors
located on the Bosporus
between the Mediterranean and Black Seas
protected on three sides by water


The details in this list best support which of the following arguments about Constantinople?
A.
Constantinople was vulnerable to a Roman invasion because of its location.
B.
Access to water resources gave Constantinople both defense and access to trade routes.
C.
Constantinople became known for developing naval technologies and cartographic skills.
D.
The fishing industry became the central focus of Constantinople's economy.