Researchers Had Participants Look at Photos of African American and White

Researchers had participants look at photos of African American and white young men holding various objects in their hand.The participants' job was to determine if the object in the hand was a gun or not, and to press a button labeled "shoot" if the object was a gun.This research demonstrated a greater likelihood to

A) press the button and "shoot" the black young men, regardless of what they were holding.
B) press the button and "shoot" the white young men, regardless of what they were holding.
C) not press the button at all and thereby be shot themselves.
D) press the button for every young man they saw.