Which type of expense can change based on use or volume? voluntary fixed variable mandatory

although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.

a) the colonists began to see themselves as different from people in britain.

with my recent question

if it were me, i would pick c. c is the best answer because it's basically saying go on a non-violent strike for india