A speaker who does not acknowledge the limitations of her data and opinions lacks which dimension of credibility?

Alex used his gesture as a(n) __________ when he held his arm up high and his hand at a 90 degree angle to show how tall his older brother was

a. illustrator b. emblem c. adaptor d. regulator

If you're competent using a computer, you really don't need to practice out loud with your PowerPoint

Indicate whether the statement is true or false.