The correct answer is actually D - Spying.
The reason why D is the correct answer is because during those times, musicians could be invited to parties, balls, and festive occasions that were hosted by one family or another family or nobility or any other important group of people who could pay them a hefty sum to tell them what another family was doing and vice versa. That is why their job offered them the opportunity to work as part-time spies.
Answer: After the civil war, there was an emergence of southern farm tenancy, a system of near slavery without legal sanctions with tenant farmers in place of slaves. The economy developed and became a money-based system, small farmers, increasingly became tenant farmers.
The answer is true to the question
The main reason why the North needed to maintain control of the border states during the Civil War was because "(B) President Lincoln needed the region’s political support to maintain <span>the presidency," since these states remained loyal to the Union but were not necessarily "free states". </span>