The Supreme Court Has Held the Death Penalty to Be

The Supreme Court has held the death penalty to be which of the following?

A) cruel and unusual under the Eighth Amendment, which means it is unconstitutional for persons committed of crimes to be executed in the United States
B) constitutional throughout the history of the country
C) constitutional for the federal government but cruel and unusual for the states to carry out
D) constitutional after the states separated trials from sentencing so juries could consider both aggravating and mitigating circumstances