Question: To disinfect fruits and vegetables using easily obtainable, safe chemicals.

  Options: 
 A. Spray the fruit or vegetable first with pure bleach, then with ammonia. Rinse off the fruit or vegetable with water after spraying it.
 B. Spray the fruit or vegetable first with white vinegar, then with 3% hydrogen peroxide. Rinse off the fruit or vegetable with water after spraying it.
Answer: B