16. Cider vinegar is produced from
A. fruit juices
B. malted grain
C. ethanol
D. ale
17. Ethanol is oxidized to acetic acid aerobically using
A. Acetobacter
B. Gluconobacter
C. both (a) and (b)
D. Lactobacillus
18. Malt vinegar is produced from
A. fruit juices
B. malted grain
C. ethanol
D. ale