Which of the Following Best Describes the Relationship Between State

Which of the following best describes the relationship between state building and trade at the end of the first millennium B.C.E.?

A) Private merchants found it increasingly difficult to compete with the wealth of powerful rulers and aristocrats.
B) The military campaigns of large states often interrupted trade for long stretches of time.
C) The rulers of large states often interfered with the trade of merchants, dictating what and where they could sell their goods.
D) As states grew, merchants often found better systems of roads and communication, which facilitated trade.