What did Missouri, Kentucky, Maryland, and Delaware have in common during the Civil War?

A.They all declared their neutrality during the war.***
B.They were all slave states that had remained in the Union.
C. They were the first Confederate states to be captured by the Union army.
D.They freed their slaves before the Emancipation Proclamation was issued.

Check answer please!!

Actually I change my answer, is it B??

B is correct. :)

im confused

To confirm the correct answer, we can analyze each option and eliminate the ones that are incorrect.

A. They all declared their neutrality during the war.
It is true that Missouri, Kentucky, Maryland, and Delaware were border states that initially declared neutrality during the Civil War. However, this neutrality did not last throughout the entire war. Therefore, we cannot consider this option as the correct answer.

B. They were all slave states that had remained in the Union.
This option is correct. Missouri, Kentucky, Maryland, and Delaware were border states that were slave states but stayed loyal to the Union during the Civil War. Therefore, we can consider this option as the correct answer.

C. They were the first Confederate states to be captured by the Union army.
This option is incorrect. Missouri, Kentucky, Maryland, and Delaware were not Confederate states. They were slave states that remained in the Union, so they were not captured by the Union army.

D. They freed their slaves before the Emancipation Proclamation was issued.
This option is incorrect. None of these states freed their slaves before the Emancipation Proclamation was issued. The Emancipation Proclamation was issued on January 1, 1863, and it declared slaves in Confederate-held territories to be free. It did not apply to the border states, including Missouri, Kentucky, Maryland, and Delaware.

In conclusion, the correct answer is B. They were all slave states that had remained in the Union.