gathering data on how many veterans lack proper health care and publicizing it on social media
Answer:
Question seems to be incomplete
Explanation:
The Civil War was based on a disagreement on slavery, but slavery was not the main issue. The Union opposed the South's economic system (slavery) and the South was not too happy about that so they began seceding from the Union. President Lincoln's main goal was to preserve the Union and to get the Southern states to come back. Slavery was just something that had gotten taken care of during the Civil War.
I believe that the answer is b, because he is a German engineer and the process was named the Siemens-martin process
