European countries created alliances prior to world war i to protect one another from attack. encourage one another to expand their armies. protect one another from financial depression. encourage one another to colonize other countries.

A) Protect one another from a attack

European countries created alliances prior to World War I to  protect one another from attack. The first option is correct.

European countires such as Germany, Austria-Hungary and Italy formed the Triple Alliance. In 1882, they signed a document that promised they would give each other military support in case of a war. The Alliance agreement stated it was 'essentially defensive and conservative' with the aim of stopping anyone who 'might threaten' the three nations.

Finally, Italy still disputed land with Austria-Hungary.

b. british workers