Which sequence of documentation would best fulfill the FDA's requirement that an additive be 'detectable' in foods as part of a premarket petition?

• A. Validated analytical method (e.g., HPLC or GC with LOQ/LOD), interlaboratory reproducibility data, and examples of measured concentrations in representative food matrices
• B. A company memo describing color and appearance changes when the additive is present, plus consumer report forms alleging its presence in products
• C. A signed affidavit that the additive 'will be detectable' without providing the method, detection limits, or proof of measurement
• D. Photographs of the additive in powder form and a single in-house chromatogram without validation or matrix testing

Answer: (A)