Answer:
d) independent experts
Step-by-step explanation:
The manufacturers of a product are always attempting to make money; so, they will lie about the product to make more people want to buy. Same for the companies related to the manufacturers. Additionally, the paid evaluators are connected to the manufacturers and will lie to make money also. However, independent experts know what they are talking about and are not paid to speak positively about the product. Therefore, they are the best to listen to.