These Bacteria Are Unable to Ferment Either Lactose or Glucose

These bacteria are unable to ferment either lactose or glucose, but they can degrade the peptones present in the TSI agar or KIA aerobically or anaerobically, resulting in the production of alkaline by-products in the slant or deep, respectively, changing the indicator to a deep red color. What kind of bacteria cannot ferment lactose or glucose?

A) Nonfermenting bacilli
B) Anaerobic bacilli
C) Gram-positive cocci
D) Gram-positive rods