The Expected Outcome of an Oxidase Test Performed to Identify

The expected outcome of an oxidase test performed to identify Neisseria menigitidis is

A) the amplification of the oxi gene as detected on an agarose gel.
B) cells colored black when stained and viewed under the microscope.
C) the appearance of bubbles when cells are mixed with hydrogen peroxide.
D) a zone of clearing surrounding colonies on chocolate agar.
E) a color change of a colony from tan to black when oxidase reagent is added.