Answer:
Letter a is correct. Audience analysis.
Explanation:
Audience analysis is the preparation stage for a presentation, and is relevant for audience evaluation and definition so that communication is appropriately addressed to them.
Audience definition is important for the direction of the presentation, so you can create an engaging presentation that will create the intended understanding of the presenter and positively impact the audience. For this it is necessary to know some characteristics of the public, such as age group, level of knowledge of the subject, interest, culture and others, in order to trace the ideal profile and the direction to occur effectively.