Answer:
The correct option is D,determining audience composition
Step-by-step explanation:
In determining the makeup of a group of audience,special attention is paid to their demographic information which refers to the distinguishing characteristics exhibited by members of the audience.
Aliyah is seeking for these differences and similarities in order that meaningful conclusions can reached on the entire population of audience.
Option A, is obviously wrong,as the features chosen were not entirely about level of education or understanding.
The task was not also has not nothing to do with size of the audience,since the size of the audience is by mere counting of numbers.
There was no clue regarding understanding of audience expectations let alone preferences.