To Read the Hemolytic Reaction on a Blood Agar Plate

To read the hemolytic reaction on a blood agar plate accurately, the technologist must

A) hold the plate up to the light and observe the plate with the light coming from behind.
B) hold the plate under the light and observe the plate with the light coming from the top.
C) hold the plate over a white background.
D) examine the plate using reflected and transmitted light.