Please Read the Clinical Scenario, and Then Answer the Question

Multiple Choice

Please read the clinical scenario, and then answer the question that follow to become familiar with the traditional NCLEX question format.
A 67-year-old patient with severe sepsis undergoes a full infectious workup upon admittance to the intensive care unit. Cultures of urine, blood, sputum, and cerebral spinal fluid are obtained. The cultures do not yield a specific organism, so further analysis of the sample is done to determine the characteristics of the microorganism. The metabolic processes are analyzed in the lab.
-Biochemical testing reveals that the organism further reduces nitrite to produce nitrous oxide.Based upon this by-product,which of the following is the most likely catabolic pathway utilized by this organism?

A) aerobic respiration
B) anaerobic respiration
C) fermentation
D) Aerobic and anaerobic respiration,as well as fermentation,can all lead to the production of nitrous oxide