It seems like A or B but more for the answer B
The answer is the last one. It starts in past tense by saying "was" but then changes to present tense by saying "starts".
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.
The answer would be A.
have lives ans stories of their own.
hope this helps
