The map shows europe’s two major alliances in place in 1905.

which best explains why these alliances created tensions in europe?

a) alliance members signed treaties to defend each other in times of war.
b) alliance members feared attack and strengthened their economies.
c) alliance members sought control over the balkans and the ottoman empire.
d) alliance members fought to control trade routes throughout the continent.

A) Alliance members signed treaties to defend each other in times of war.

Explanation:

As the alliance members signed the treaty to defend themselves in times of war, and the Entente members also did the same, other little countries also signed treaties of defense and alliance, this rose up tension when archduke Francis Ferdinand from austria was assasinated by Serbia made that several allies, joined the war since Serbia was allied to the entente and Austria to the Alliance, this was the start of WWI.

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