Which of the following cases would result in missing (or unclassifiable) data under new standards when transforming the existing data from old standards? Group of answer choices A. Number of cigarettes smoked (old standards) vs. Smoker binary status (new standards) B. Smoker binary status (old standards) vs. Number of cigarettes smoked (new standards) C. Weight in pounds (old standards) vs. Weight in kilograms (new standards) D. Year of birth (old standards) vs. Month and year of birth (new standards)