Use the graph and your knowledge of US history to answer the question which of these explains the difference in union versus confederate fire arm production during the Civil War

I believe your answer is B, I'm like 90% sure, but we all make mistakes also let me know if it was right or wrong.

Explanation:

Have a nice day :) I know this corona virus has us sad and stuck inside, but I believe spreading a little positive vibes will help others come together and feel happy

your answer would be (a)