The copperheads werea. southern democrats who called for
a return to the union.
b. republicans who opposed the lincoln administration.
c. northern democrats who opposed the union war effort.

The Copperheads were Northern Democrats who opposed the Union war effort.

Explanation:In the 1860s, the Copperheads, aka Peace Democrats, opposed the American Civil War and wanted immediate peace. They were called copperhead in relation to the venomous snake copperhead/pit viper.

the answer is C. Northern Democrats who opposed the Union war effort.

Explanation:

vertical merger is the term used for the joining of two or more firms involved in different stages of producing the same good or services.

explanation:

answer; for children with two myopic parents,the likelihood of becoming myopic is ) correlated with the number of hours spent playing sports each week;