Readers who stop every now and then and make notes about things they think are important while they read are: using context clues.
summarizing and synthesizing
using mnemonics.
None of the choices are correct

your answer would be a) no nation can be economically self-sufficient.

stay in school!

the emancipation proclamation was the aim of the war change to include the freeing of slaves in addition to preserving the union. the 13th amendment, which abolished slavery in the u.s. was passed on december 6th 1865.

as promised, lincoln waited to unveil the proclamation until he could do so with success from the union military advance. on september 22nd 1862, after a victory at antietam, he publicly announced a preliminary emancipation proclamation, declaring all slaves free in the rebellious states as of january 1st 1863.

you didn't post an image.