Cognitive complexity is a term covered in the book and in class. Which of the below best defines effective cognitive complexity ?
a. The endurance to find and incorporate research that convinces an audience of the speaker's credibility .
b. The ability to practice a speech enough times so that it sounds natural when delivered to an audience .
c. Creating a LinkedIn following that includes a diverse group of professionals .
d. The ability to balance a speech topic so that the speaker makes the points they need to while presenting that same topic in a way that engages the audience .