Answer:
It is considered unethical because he is lying about the characteristics of the product he is selling, and therefore is damaging the credibility not only of him as a seller but the credibility of the company.
Step-by-step explanation:
A seller who is not ethical and who cheats his potential customers is a threat to the company.
It is important that companies give their employees the necessary training to avoid this type of behavior especially in non-experienced employees