Answer:
The correct answer is - a. learn about your audience.
Step-by-step explanation:
Observing, collecting data, doing surveys and making inferences all are examples to know about the audience how they react, what they like, what influences them. These all research methods are very useful to learn about an audience.
For analyzing diversity they must be a comparison of types of diversity present. Observation, surveys, interview or making inferences are not something can be used in make presentational adaptations.