In a Study Investigation Flashbulb Memories for the 9/11 Terrorist

In a study investigation flashbulb memories for the 9/11 terrorist attacks,Hirst and his colleagues found that

A) almost nothing was forgotten in participants' reports of how they had heard about the event.
B) most of the forgetting that occurred came between years 2 and 3 of the three-year period.
C) confidence decreased over the three year interval as much as memory did.
D) the factors influencing forgetting were different for event memories and flashbulb memories.