During fermentation, the saturation concentration of oxygen was reduced from 7 ppm. to 1 ppm. Which one of the following conclusions can be drawn?

Experimental error leads to the reduction

Microbial growth is not oxygen limited since the oxygen concentration is lesser than the saturation concentration

Microbial growth is oxygen limited since the oxygen concentration is lesser than the saturation concentration

During fermentation, the saturation concentration of oxygen was reduce

1.	During fermentation, the saturation concentration of oxygen was reduced from 7 ppm. to 1 ppm. Which one of the following conclusions can be drawn?
A.	Microbial growth is not oxygen limited since the oxygen concentration is lesser than the saturation concentration
B.	Microbial growth is oxygen limited since the oxygen concentration is lesser than the saturation concentration
C.	No conclusion can be drawn
D.	Experimental error leads to the reduction
Answer» D. Experimental error leads to the reduction