The correct answer is C because it pauses after stating who did what.
"Yet every one of these disasters has actually happened somewhere, and many real communities have already suffered a substantial number of them. A grim specter has crept upon us almost unnoticed, and this imagined
tragedy may easily become a stark reality we all shall know."
The rhyme scheme would be: ABABCDCD
1) Where can you find beaches and scintillating modern architecture?