Laboratory Research on Punishment Suggests That It Is Most Effective

Laboratory research on punishment suggests that it is most effective in controlling behavior when it is both swift and certain. Capital punishment

A) is both swift and certain for most homicides
B) is swift because the median time to execution is a matter of months from the date of the crime
C) is neither swift nor certain for most homicides
D) is certain because it is sought for most murders in which the offense makes capital punishment a legal possibility