Answer:
By the time you get her letter, she will have arrived in Paris
Answer:
it would be hectic and unsafe
Explanation:
Since its dealing with economics I would say C.
Although the sentence is incomplete, I think that's the correct one. Both Harrison and the ballerina get killed, restoring the world to its previous situations, but their actions don't inspire rebellion and not everybody ends up happy. Harrison's parents don't, although they don't know why they are sad.