Which Characteristic Was NOT Shared by Medieval Towns and Cities

Multiple Choice

Which characteristic was NOT shared by medieval towns and cities?

A) Many received charters of liberties by the 1100s and 1200s.
B) Their location near transportation routes was essential.
C) They were food-producing, self-sufficient units, in which commerce was secondary.
D) Many were revived Roman cities whose size and populations grew as trade increased.
E) New towns or cities were begun at strategically viable locations.