Which is the most likely explanation for the impact of world war i on the growth of voting opportunities for women?

women served with courage on the battlefields, and they sought to be rewarded by being granted the right to vote.
new job opportunities opened up for women during the war, allowing them to take on new roles and gain public appreciation.
the large number of battlefield casualties resulted in not enough voters being available to take part in elections.
legislators around the world agreed that if women had been able to vote, world war i would never have happened.

new job opportunities

New job opportunities opened up for women during the war, allowing them to take on new roles and gain public appreciation.

Explanation:

The women in the First World War were mobilized in an unprecedented number throughout the world. The vast majority of these women were recruited to work in munitions factories, greatly expanding civilian work to replace the recruited men. Thousands served in the armed forces in support roles, for example, as nurses but in Russia some were in combat.

food and resources were plentiful.

women were encouraged to marry later in life so they could work in factories.

disease was the number one killer of native peoples. they had had little exposure to the diseases of europe. this led to some villages being almost completely wiped out and some tribes destroyed.