How did militarism play a role in sparking world war i?
each of the major powers considered itself superior to the others.
each of the major powers considered its military strength superior to others.
all of the major powers considered war to be part of a valid foreign policy.
all major powers believed they could threaten war and no one would call their bluff.

The right answer is:  "All of the major powers considered war to be part of a valid foreign policy."

Explanation:

Militarism encouraged and strengthened views that military might and war were better methods than diplomacy and negotiations to solve international disputes. All major European powers engaged in programs of military modernization and enlargement in the 19th and 20th centuries. Militarism played a major role in the outbreak of WWI.

north atlantic treaty organization.