Calorimetry is the study of how heat is produced by chemical reactions. Calorimetry experiments are typically done inside an insulated container that is sometimes called a "bomb." A perfect insulator will not let any heat transfer through it. Which reason best explains why calorimetry experiments are usually done inside insulated containers? A. The insulator defines a boundary for the system being studied. B. The insulator keeps the reaction cold while it is being studied. C. The insulator prevents the chemical reaction from taking place. D. The insulator prevents the reaction being studied from exploding.