In One Set of Studies Related to the Somatic Marker

In one set of studies related to the somatic marker hypothesis, participants are asked to choose draws from high- and low-risk decks. Eventually, most participants without brain injury learn to stop drawing from a risky deck. What else is found in these studies?

A) About one third of participants with brain injury consistently draw from the low-risk deck throughout the study.
B) About one third of normal participants are unable to explain why they chose cards from one deck more or less than from another.
C) Participants become very angry when they are forced to abandon the high-risk deck.
D) The arousal levels of all participants are consistently low throughout the study.