After a Film, Participants Were Asked One of Five Questions

After a film, participants were asked one of five questions.The five questions were: -How fast were the cars going when they smashed each other?
-How fast were the cars going when they collided with each other?
-How fast were the cars going when they bumped each other?
-How fast were the cars going when they hit each other?
-How fast were the cars going when they contacted each other?
They found that:

A) estimates of speed were affected by word choice.
B) when the words "smashed" or "collided" were used, participants had more false memories.
C) when the words "hit" or "contacted" were used, participants had fewer false memories.
D) participants were so rattled by the film that most reported no memory of the accident.