With Congress in deferment from April to Dec., 1865, Johnson put his arrangement into operation. Under temporary governors named by him, the Southern states held traditions that voided or canceled their mandates of severance, nullified subjection, and (with the exception of South Carolina) disavowed Confederate obligations.
A. is the answer because an allegory is a story restricted to 1 meaning because of a specific idea. Irony is when something happens and its the opposite of what is expected.
She doesn't know when they will see each other again. She has come to conclude that the word goodbye means forever which is the reason of her refusing to use the term.