The sketches of 9/11 victims in "Portraits of Grief" make the event more personal and real. Option C is correct.
The September 11 attacks marked a series of four coordinated terrorist attacks perpetrated by the Islamic terrorist group al-Qaeda against the United States on the morning of Tuesday, September 11, 2001. The attacks claimed the lives of 2,996 people, injured over 6,000 others, and resulted in at least $10 billion in infrastructure and property damage. Further people died of 9/11-related cancer and respiratory diseases in the following months and years.