Clostridium botulinum can produce a potent neurotoxin when certain environmental conditions are present in food. Which type of food preparation most strongly promotes the growth of this organism and toxin production?

• A. Storage of acidic fruit jams in sealed jars
• B. Improperly canned low-acid vegetables stored without oxygen
• C. Fresh leafy vegetables washed and eaten raw
• D. Refrigerated cooked rice consumed within a few hours

Answer: (B)