The statement that helps us to understand the meaning of the word deadliest is
A. who perished
Something that is deadly causes death and anguish to those who are affected by it. The September 11 attack that caused the death of about 3000 people at the World Trade Center was indeed deadly given the number of casualties from the incident.
Context clues are the surrounding words that provide further meaning to some selected words and phrases.
Thus, we can conclude that the meaning of the word deadliest is best seen in the phrase, <em>who perished.</em>
