Which heading best completes the partial outline

below?

I. _______

ACities
BComplex government
CJob specialization
DWriting system

(1) Examples of Early Technology

(2) Results of Cultural Diversity

(3) Characteristics of Civilizations

(4) Causes for the Neolithic Revolution

Verified Answer :

"(3) Characteristics of Civilizations" would be the best heading that completes the partial outline below, although it could be applied to different things as well.