What’s the central idea to milgram experiment on obedience

Read this excerpt from tim o’brien‘s “ambush” “i had already pulled the pin on a grenade. i had come to a crouch” which literary device is most clearly shown in this excerpt?

As for this city's government, i don't want to say much, except that it is a shame – a shame; but if i should live twenty-five years longer – and there is no reason why i shouldn't – i think i'll see women handle the ballot. which quotation correctly uses ellipsis to shorten twain’s words? as for this city's government, i don't want to say much, except that it is a shame . . a shame; but if i should live twenty-five years longer – and there is no reason why i shouldn't . . i think i'll see women handle the ballot. as for this city's government, i don't want to say much, except that it is a shame – a shame; but if i should live twenty-five years longer . . i shouldn't – i think i'll see women handle the ballot. as for this city's government, i don't want to say much, except that it is a shame – a shame; but if i should live twenty-five years longer – and there is no reason why i shouldn't . . as for this city's government, i don't want to say much, except that it is a shame – a shame; but if i should live twenty-five years longer . . i think i'll see women handle the ballot.

Insert comma today we went to the store to the post office and to the park