Based on Interviews in a Virginia Prison from 1986 to 1999

Based on interviews in a Virginia prison from 1986 to 1999 with more than 100 imprisoned "street criminals" most of whom were murderers, which of the following aggravating factors should be eliminated to narrow death eligibility?

A) killing an unresisting victim
B) killing from a pecuniary motive
C) killing to eliminate an innocent witness
D) killing during the course of a robbery
E) all of the above