Answer:
Comparative advertisements need legal support for their claims and must not misrepresent competing products/brands
Step-by-step explanation:
Comparative advertisement is also called advertising war. A competitor is named in the advertisement and reasons are given why the competitor's product is inferior to the one being advertised.
In this type of advertisement to prevent adverse legal action the company needs to carry out extensive research to provide legal backing for their claims.
Firms must also not misrepresent the competitor's product as this can lead to legal action.