With Respect to the Death Penalty,in His 40-Year Review for the United

With respect to the death penalty,in his 40-year review for the United Nations,Hood (2002) found when comparing countries that were abolitionist,retentionist,or users with a moratorium:

A) retentionist countries had the lowest rate of capital crimes
B) users with a moratorium on the death penalty had the lowest rate of capital crimes
C) there was no difference in frequency of capital crimes
D) abolitionist countries had the lowest rate of capital crimes