Q15 If you speak too quickly, audience members may lose interest because they cannot follow what you are saying. If you speak too slowly, their minds can wander and you might see them heading for the exit or reaching for their electronic devices. What is the optimal speed in words per minute of a presentation?[1,2] (a) less than 90 (b) between 90 and 130 (c) between 120 and 160 (d) more than 160