The venn diagram compares aerobic respiration and anaerobic respiration. mc026-1.jpg which statement could be categorized only in the anaerobic section of the venn diagram?

Although the options are not provided, the statement that applies only to anaerobic respiration and not to aerobic respiration is
has commercial uses
Anaerobic respiration finds its major use in the production of alcohol from yeast in a process known as fermentation. The yeast or other microorganisms are provided a substrate to respire anaerobically on and they produce ethanol as a result of this process.

Very hard to understand