In a Famous Experiment,all Subjects Viewed the Same Video of an Automobile

In a famous experiment,all subjects viewed the same video of an automobile accident.Later one group of subjects was asked,"How fast were the cars going when they bumped into each other?" The other group of subjects was asked,"How fast were the cars going when they smashed into each other?" Which group reported seeing more broken glass?

A) the group that was asked about cars that "bumped" into each other
B) the group that was asked about cars that "smashed" into each other
C) Both groups reported seeing equal amounts of broken glass.
D) Neither group reported seeing any broken glass,because there was no broken glass.