When Valentine and Mesout (2009) Fitted Visitors to the London

When Valentine and Mesout (2009) fitted visitors to the London Dungeon with a wireless heart monitor, they found that

A) higher anxiety levels were associated with more accurate eyewitness identification.
B) higher anxiety levels were associated with less accurate eyewitness identification.
C) heart rate corresponded to arousal level.
D) heart rate corresponded to the number of perpetrators encountered.