I believe the answer is Syria
The civil war improved the economy of the north, but harmed the economy of the south. The south relied heavily on agriculture/ producing cotton on slave worked plantations. The civil war led the slaves to finally be freed thus sending many southern farmers into poverty.
B. Originally Spain allied with Neapolitan until he backstabbed them, so option 3 has to be sore the since they where all against him at the beginning of the war
A. Many people became hobos