Answer:
Differing advertising messages.
Step-by-step explanation:
Ethnic diversity among a group of people means that there are very little similarities between the people involved and they have different personalities, opinions, and likenesses. The role of marketers is to provide customized advertising material so that all types of people are targeted and their message is appreciated by all the types of people. For this reason, the marketers use different advertising messages and strategies so that the message can reach everyone and be effective.