According to this diary one of the causes of reconstruction was the destruction of the southern economy and its infrastructure. Option b is correct.
From what she entered in the diary, this is the only option that makes sense. She complained about destruction.
She said that the raid by Potter burned their mills and their gins as well as a lot of cotton.
Therefore from the diary it can be deduced that the cause of reconstruction was the destruction of the economy in the South and its infrastructures.
Read more on https://brainly.com/question/13441280?referrer=searchResults