Read the paragraph below:

Bill: A $32-$year$-$old data analyst with a PhD in English and MA in English; learned computer programming in school, but has been teaching himself for several years since he left; knows Python, R$,$ and JavaScript, but has been struggling to learn D$3$; does not like interacting with people or sending emails; enjoys following online tutorials; listens to a lot of podcasts. Loves to use technology, but is skeptical of corporations.

What is this an example of$?$

User profile

Audience member

Rhetorical convention

Secondary audience