Whice sentence best describes the influence of alliances on the start of world war 1 ?

i have heard of this question before positively i guess this is the answer :

alliances between nearly all european nations meant that when two went to war, all became involved.

some women in the middle and upper classes worked as doctors, government officials, or priestesses. both women and men enjoyed a better quality of life the higher they were on the social pyramid. the egyptians believed that their class system created a stable, well-ordered society. each group had its own role to play.

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