Why Would a Cell Ferment Rather Than Respire

Why would a cell ferment rather than respire?

A) There's no oxygen present, and it cannot respire anaerobically.
B) It lacks the ability to respire (i.e. no electron transport chain) .
C) There is no oxygen present and it cannot use anaerobic respiration OR it lacks the ability to respire (i.e., no electron transport chain) .
D) More ATP is produced for the cell by fermentation than by aerobic respiration.
E) There is too much oxygen available and fermentation is a safer alternative.