The correct answer is: **None of the above options are requirements of the Nutritional Labeling Act of 1990 and its revisions.** However, the most correct answer by elimination (as none are correct requirements) is that **all the listed options are NOT requirements**. But, to directly address the likely intent of the question, let’s analyze each option: --- ### Correct Answer Explanation **None of the options (a, b, c, d) represent a requirement under the Nutritional Labeling and Education Act (NLEA) of 1990 and its revisions.** --- ### Why the Other Options Are Not Correct **a. Inconsistent serving sizes are OK to print on labels.** Incorrect. The NLEA actually requires standardized serving sizes to ensure consistency and enable consumers to compare products easily. **b. Exclusion of allergens from the ingredient list** Incorrect. In fact, later amendments (such as the Food Allergen Labeling and Consumer Protection Act of 2004) require that major allergens be clearly listed on food labels. **c. The manufacturer's contact information is optional** Incorrect. The NLEA and other FDA labeling rules require the name and place of business of the manufacturer, packer, or distributor on the label. **d. Inclusion of scientifically unsupported health claims** Incorrect. The NLEA strictly regulates health claims, requiring that any such claims be supported by scientific evidence and authorized by the FDA. --- ### Summary The NLEA's primary requirements are to provide consistent nutritional information, standardized serving sizes, accurate ingredient lists (including allergens), and truthful, scientifically supported claims. The given options are all contrary to the actual requirements of the law. Among the choices, none describe a requirement of the Act; instead, they represent what is explicitly not allowed by the NLEA and its revisions.