In Identification of Mycobacterial Isolates, the Catalase Test Involves

In identification of mycobacterial isolates, the catalase test involves

A) the enzyme catalase, which splits hydrogen peroxide into water and oxygen.
B) measuring the height of a column of bubbles of oxygen.
C) the ability of the catalase enzyme to remain active after heating.
D) not the presence of, but the relative activity of the catalase enzyme.
E) All of the above are correct.