1. Members of the alliances
before World War I
promised to
a. support democracy.
b. establish trade networks.
c. defend each other if any
were attacked.
d. provide air support.

c

Explanation:

they promised to help each other in any event of attack

C

Explanation:

I’m assuming it’s the Triple Alliance and it’s a perk of being in an alliance as a country in general.

its many islands, high mountains, and remote peninsulas isolated population centers.

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