Which of the Following Was NOT an Argument Used by the Psychologists

Which of the following was NOT an argument used by the psychologists in their amicus curiae brief submitted in the case of Lockhart v.McCree (1986) ?

A) The death penalty is administered in a racially-biased manner.
B) The jury-selection process in capital trials produces a jury that is conviction-prone.
C) Death-qualified juries are unrepresentative because a higher percentage of certain classifications of people are excluded.
D) None of the above