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.
In 1838, the city of Boston established the first American police force
Answer:
They would want to move to a new country because of the enviorment, or because they need to be closer to something. There are many other reaosns.
