Stacy is using language that is Appropriate for the speaker for effective communication.
It is very important to tune the way we speak and the language we use during speaking for effective communication.
for example, Addressing a group of footballers ensures that the speaker uses terms that the footballers can flow with, same goes with addressing a group fo doctors.
Knowing how to flow between language is a major key for effective communication.
Therefore Stacy being able to develop her own style in speaking shows that She has the knowledge for using languages Appropriate for the speaker.
Learn more here for the use of appropriate language:https://brainly.com/question/5526163