Bacteriophages are considered as one of the single most important cause of slow starter action or starter failure. Measures employed to minimize the risk of phage attack include:
A. Incorporation of electrolytes in the growth media.
B. The use of mixed and phage-unrelated cultures.
C. Strict adherence to aseptic techniques.
D. Proper selection of the starter growth media and proper heat treatment of media.
Choose the most appropriate answer from the options given below: