Question

One of Lincoln's greatest achievements was

(A) Building more factories in the North
(B) Selling cotton to Europe, and thus bringing money to the south.
(C) Starting the Social Security system.
(D) Preserving the United States of America

Answer 1

(D) Preserving the United States of America

Step-by-step explanation:

He managed to keep the United States together though a Civil Way had to happen in order for differences to be sorted out

Hope this helps :)