Where does it make the most sense to insert the transition "specifically"?
(1)Abraham Lincoln's presidency was marked by the
Civil War. (2)The conflict spanned almost the entirety
of his administration. (3)At the start, Lincoln made
crucial decisions that led the nation into war. (4)He
refused to let the Southern states leave the Union.
(5)Later, he established the Emancipation
Proclamation, which eventually helped free all
enslaved people. (6)Lincoln's choices as president
changed the reason for fighting the war and the
course of the conflict.
O at the end of the third sentence
O at the beginning of the fourth sentence
O at the end of the fifth sentence
at the beginning of the sixth sentence