The subject is every one in our school
Answer:
They are unprepared for This catastrophic event.
Explanation:
Paragraph two explains that everyone stops and looks up because of the loud noise meaning that it was sudden or else they wouldn't have paid any mind to it. Paragraph two also explains that the noises the Characters were making was pretty loud by itself. So, they must haven't been prepared for this event and the question wants us to give an answer based on the characters action.
The best use of punctuation is shown in "Sandy, a wayward puppy, was taken in and adopted by a loving family". The information between the commas is not necessary information to understand the meaning of the sentence. That is why it is separated from the rest of it by means of punctuation.
The other examples present cases in which there is a misuse of the parenthesis. The information included in them ("to the museum" and "beautiful places") are not specifying what has been previously stated. What is more, the last sentence also contains a misuse of the dash.