What legal action during the civil war ended slavery in states that had left the
union?
a. black codes
b. plessy v. ferguson
c. emancipation proclamation
d. reconstruction act of 1867

Emancipation Proclamation

Explanation:

Emancipation Proclamation was a document consisting of two decrees of Abraham Lincoln issued during the American Civil War. The first decree, issued September 22, 1862, declared free all slaves in any state of the United States that did not return to the United States until January 1, 1863. The second decree, issued January 1, 1863, named 10 individual states that would be subject to the abolition of slavery.

africa

explanation:

operation overlord was the codename for the battle of normandy, the allied operation that launched the successful invasion of german-occupied western europe during world war ii. the operation was launched on 6 june 1944 with the normandy landings