Why, According to Van Den Haag, Can the Death Penalty

Why, according to van den Haag, can the death penalty never be unjust to a guilty criminal?

A) Death is the common fate of all human beings, not merely those convicted of violent crime.
B) The death penalty is an appropriate retaliation to all forms of violent crime, not simply murder.
C) The criminal would be more degraded by the loss of autonomy inherent to a life sentence.
D) The criminal knowingly assumed the risk of death by execution when committing the crime.