Answer:
c. identify the appropriate tone, language, and channel.
Explanation:
The word profiling has a dictionary meaning that refers to an act of recording and analyzing an individual or person's act and characteristics, in order to evaluate and create the expected behavior of such individual in some certain specified area of study.
Accordingly the study helps to create an idea, but is not that accurate or it is not the entire conclusion of the individual's characteristics.
Thus the correct option is it helps the writer in creating an appropriate tone, as accepted by the audience, the language and that the channel through which the audience feels maximum connection.