What meaning of "shock" is being used in this sentence?

"the shock was so terrifying, i had to go to the hospital."

a) an unpleasant or disappointing surprise

b) a mechanical damper; absorbs energy of sudden impulses

c) an instance of agitation of the earth's crust

d) a pile of sheaves of grain set on end in a field to dry; stalks of indian corn set up in a field

Read the sentence below about the chicago fire of 1871. schaffer told someone else to strike the wrong alarm box and that caused a miscommunication during the chicago fire of 1871. which revision is the best example of adding concrete details? schaffer told another person in his office to sound the wrong alarm and that caused a big miscommunication during the chicago fire. schaffer told his assistant to strike the wrong alarm box and that caused a miscommunication during the massive chicago fire of 1871. schaffer mistakenly told his assistant to strike alarm box 342 instead of the correct box and that caused a miscommunication during a fire in chicago. schaffer mistakenly told his assistant to strike alarm box 342, and as a result, firefighters were directed to an incorrect location during the chicago fire of 1871.