Which of the following provides the most objective information about a product?

The food product ingredient label provides the most objective information about a product because it includes specific, factual details that are regulated by law. Ingredient labels must list every component included in a food item, often in descending order by weight, allowing consumers to clearly see what they are purchasing. This information is standardized and does not include subjective opinions or persuasive language, which may be present in other types of information sources.

In contrast, a sales brochure is typically designed to promote a product and may emphasize benefits or features while downplaying any drawbacks. Expert reviews can offer valuable insights but are still somewhat subjective, reflecting an individual's personal experience or opinion regarding the product. Advertisements are primarily promotional in nature and are crafted to entice customers, often focusing on persuasive messaging rather than purely factual information about the product itself. Thus, the ingredient label stands out as the most reliable and objective source.