Lily covers her husband's alcohol-related absences by lying to his boss. a behavior therapist is most likely to say that lily's problem is

Lily's problem is her own codependency

Explanation:

Codependency is a health term used to refer to people who are strongly emotionally linked to a person with serious physical and / or psychological dependence on a substance (such as alcohol or illicit drugs) or with problematic and destructive behavior (such as pathological gambling or a personality disorder). A codependent person ends up assuming wrong behaviors to protect the person who is the object of concern and attachment.

An example of this can be seen in the question above, where Lily has codepency. We can see that because Lily is so attached to her husband that she is addicted to alcohol that she has lied about her husband's faults (lacking to be drunk) to her boss, even though knowing that lying is not good behavior.

answer; the confederacy could afford to move a large number of prisoners hundreds of miles but could not afford to fee and house the prisoners;