One of the ways speakers analyze audiences is by looking at traits such as age, gender, sexual orientation, religion, group membership, and racial, ethnic and cultural background. According to your textbook, what is this called:

The correct answer to the following question will be "Demographic audience analysis".

Explanation:

Demographic analysis is part of the Audience analysis.

The method of examine the audience's knowledge termed as Audience analysis. The evaluation allows you to customize your speech to ensure if your viewers react as you desire.The demographic research or analysis covers age, class, population, caste, gender, religion and standard of education.

Therefore, it's the right answer.