B, Acetobacter belongs to prokaryote, its metabolic type is heterotrophic aerobic type, the suitable temperature for survival is 30 ~ 35℃, and it can be used in fermented vinegar, while the microorganisms involved in yogurt production are mainly lactic acid bacteria, B error;
Mucor is a fungus belonging to eukaryotes. Its metabolic type is heterotrophic aerobic, and the suitable survival temperature is 15 ~ 18℃, which can be used to make sufu. C is correct;
D lactic acid bacteria are prokaryotes with heterotrophic anaerobic metabolism, which can be used to make pickles. D is correct.
Therefore, choose: B.