Three countries called Kenatolia, Hesaina, and Jalkavia recently experienced civil wars. Political comparativists proposed 4 probable attributes for the civil wars: unemployment, terrain, ethnic diversity, and type of government

Below are the characteristics of each attribute for each country.
Kenatolia: High unemployment, flat terrain, ethnically heterogeneous, and federalist government.
Hesaina: High unemployment, mountainous terrain, ethnically heterogeneous, and socialist government.
Jalkavia: Low unemployment, mountainous terrain, ethnically heterogeneous, and communist government.
According to the method of agreement in the comparative method, which of the following attributes was the cause of the civil wars?
A. unemployment
B. type of government
C. unemployment and terrain
D. ethnic diversity
E. ethnic diversity and terrain

D