Lincoln wanted all the Confederate States to join back the union and he did that by issuing the Emancipation Proclamation which basically stated that if the Confederate states did not join the Union by January 1, 1863 then all slaves would be freed.
"<span>e. Employers used their wealth to buy unfavorable and often unfair publicity" would be the only reasonable option from the list, since the employers wouldn't do things to decrease worker productivity if they could help it. </span>
Probably go ask your doctor about how many shots you need to take, that's the probably the best way to avoiding bacterial contamination.