Answer:
C. Dense forests, natural harbors
Limber milling^^ fishing^^
B-Passive, withdrawn, and naïve
C) populism
For future reference: an easy way to remember the causes is to use the acronym MAIN (as in the MAIN causes) to remember that they are militarism, alliances, imperialism, and nationalism.
Hope this helps :)
Answer:
Clay, marble, and bronze if I remember correctly.
Explanation: