They were all slave states that had remained in the Union and this is what Missouri, Kentucky, Maryland and Delaware had in common during the Civil war. The correct option among all the options that are given in the question is the second option. I hope that this is the answer you were looking for and it helped you.
So that you know what your essay is about you need evidence to build you argument on
Answer:
It is B.
Explanation:
All the other options don't make sense.
Answer:
the draft
Explanation:
use of the draft was a good way to require assistance in time of war