asking voters to approve or disapprove of public issues like a bond issue to raise school taxes in an election is called a

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation:

the correct answer is d- trough trades

i did a test and got it right

hope it ! : )