I believe the answer is A.
Answer:
I believe it to be Improve
Explanation:
I hope this helps, sorry if it doesn't!
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.
Answer:
by being watchful , be more attentive & learning from experience persons
