To write an effective ending to your essay, you should B. END ON A NOTE THAT'S LIKELY TO STICK IN THE READER'S MIND.
This is to ensure that your essay will still occupy the minds of your readers even after reading it.
Events or thoughts that readers can relate to your essay's end note will also bring back the ideas or thoughts you have stated in your essay.
Is it 4000 psi, 3500psi and 3000psi
Can you post the story if you have it