What conclusion and U.S. cotton production before the Civil War is best supported by the graph? Responses ​​​​​​​ Cotton farming was becoming less profitable. ​​​​​​​ Cotton farming was becoming less profitable., ​​​​​​ Cotton exports were a major part of the economy. ​​​​​​ Cotton exports were a major part of the economy., ​​​​​​​ Cotton farming required major state subsidies. ​​​​​​​ Cotton farming required major state subsidies., ​​​​​Cotton exports made the Southern states wealthier than the Northern states. ​​​​​ Cotton exports made the Southern states wealthier than the Northern states.,