The correct option is A II
Penicillium notatum is a mould that produces a chemical that retards the growth of bacteria. It is therefore used in the manufacture of antibiotics.
Acetic acid is produced from bacterium, Acetobacter aceti. It is used as an industrial solvent and as an ingredient in food items.
Lactic acid is produced by the bacterium, Lactobacillus. It is used in the cosmetic industry, pharmaceutical industry and the food industry.