Corporal James Henry Gooding wrote President Lincoln saying, “Now the main question is Are we Soldiers, or are we LABOURERS? We are fully armed, and equipped, have done all the various Duties, pertaining to a Soldiers life, have conducted ourselves, to the complete satisfaction of General Officers, who, were if any, prejudiced against us, but who now accord us all the encouragement and honour due us.” What issue, or inequity, was Gooding protesting?

after the civil war, and with the termination of slavery, the south was faced with a big problem; what was supposed to happen and how they were supposed to deal with the freedom and the rights that black people and freed slaves had gained as a result of the north defeating the south and forcing the end of slavery. first, most, if not all, of the workforce of the south came from slaves and they did not have an option to replace the loss of said workforce. second, particularly in the south, people were convinced that black people were lesser, less intelligent, less capable and less smart than whites. this posed a huge problem for them. also, southerners were faced with another issue; freed slaves now had a say in how their lives would be lived and the right to politically choose the way they would be governed. people in the south did not want to accept this, none of this and this opposition and the conflicts that arose from it, not to mention the afereffects of the war, forced the congress of the time to enact and enforce the reconstruction plans that had been proposed by president andrew johnson.

the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain

answer:

it caused mass african migration, african populations to grow, african empires to topple, and racism against slaves to emerge.