Which of the Following Is an Example of the Vividness

Which of the following is an example of the vividness criterion?

A) John was a soldier in the War on Terror. He watched as a Muslim insurgent killed his best friend. John believes that all Muslims are terrorists.
B) Jennifer has traditionally supported use of the death penalty for convicted criminals. Having recently watched a documentary about someone on death row, however, she changes her opinion.
C) Connie is an analyst at CIA. Her best friend, an Arab-American, told Connie about some of her family members who were killed during the War in Afghanistan. Connie feels a sense of guilt.
D) Matt watched, on television, the Twin Towers falling on 9/11. He wants to help the U.S. win the War on Terror. He has since been hired at the DIA and assigned to a unit that focuses on al Qa'ida.