Coincidence is not a form of irony. Sarcasm obviously is, Dramatic is when the reader/viewer knows more than the character in the plot. Situational irony is when the opposite of what's expected happens, and Coincidence is not an irony.
Answer:
Not 100% sure but here are my thoughts...
Explanation:
Fear of the unknown leaves people feeling vulnerable. There is really no way to plan and prepare for the unknown. No date and time of when and where an event could happen. People are forced to just let it occur. They have no control and that can scare people especially as they are subjected to this event without any sort of prior knowledge or warning.
D. recite important items of the text out loud