What type of results does the Intoxilyzer 9000 produce?

The Intoxilyzer 9000 is designed to provide quantitative results that accurately measure the concentration of alcohol in a person's breath. This quantitative data is expressed in terms of grams of alcohol per deciliter of blood, which is a critical factor for determining legal intoxication levels. By measuring the exact amount of alcohol present, the device allows law enforcement and legal entities to ascertain whether a driver is over the legal limit for blood alcohol concentration (BAC).

The other options reflect different types of results that are not characteristic of the Intoxilyzer 9000. For instance, qualitative results would simply indicate whether alcohol is present or absent without providing a measurable figure, which is not the function of this specific device. Descriptive results that explain the effects of alcohol are not produced by the Intoxilyzer 9000, as it's intended to quantify alcohol levels, not discuss effects. Additionally, comparative results against other substances are outside the scope of the Intoxilyzer's purpose; it specifically measures only alcohol. Thus, option B accurately captures the primary function of the Intoxilyzer 9000 in providing measurable and precise blood alcohol concentration levels.