In the gettysburg address which rhetorical device does abraham lincoln employ

Abraham Lincoln used a number of rhetorical devices in his "Gettysburg Address" like alliteration, parallelism, repetition etc.

Explanation:

Abraham Lincoln's "Gettysburg Address" was a speech given at Gettysburg more than four months after the defeat of the Confederates at the Battle of Gettysburg. In this speech, Lincoln praised the sacrifices of those lives lost during the battle and urged the American people to remember and get encouraged like these martyrs.

During the whole speech, he used a lot of rhetorical devices like repetition, when he said "we have come to dedicate a portion of that field, But in a larger sense, we cannot dedicate" or when he said "conceived in liberty any nation so conceived".

He also uses parallelism in his speech, "we can not dedicate—we can not consecrate—we can not hallow" or "government of the people, by the people, for the people, shall not perish from the earth".

your answer would be (a)