Teaching an audience how to do an exercise that is easy and beneficial is a way of appealing to which type of need?

Edgar is going to be presenting a training program to a group of new employees. This vocal characteristic of his will negatively impact their comprehension of his presentation

a. dysfluencies b. monotone pitch c. mispronunciations d. poor vocal quality

A speaker who presents the topic ,“How a tornado is formed,” is demonstrating

a. how something works b. how something is done c. how something is made d. how something happens