The correct answer is B) Properly labeled consumer commodities need not be labeled in accordance with Title 46 CFR. This is correct because Title 46 CFR (Code of Federal Regulations) applies to the labeling requirements for materials used on inspected vessels, such as ships' stores. Consumer commodities that are properly labeled according to other applicable regulations (e.g., FDA labeling) do not need to be re-labeled to meet the specific requirements of 46 CFR. The other options are incorrect because: A) Drugs and medicines must be stowed per FDA directives, C) Flammable stores must be certified by Underwriters Laboratories for use on inspected vessels, and D) Aerosol cans have specific stowage requirements not mentioned in the question.