Critical Thinking Questions Case 1-2

Critical Thinking Questions Case 1-2
Doug is giving a presentation about volunteer work to a local youth group. To grab his audience's attention, he wants to use lots of animation effects, but he also wants to make sure he is keeping in mind the best practices in terms of the creation of presentations.
What is the smallest font size Doug should use in the text on his slides?

A) 20 points
B) 24 points
C) 28 points
D) 30 points