If you multiply me by 2 i become a number greater than 20 bit less than 40, if you multiply me by 6 i end in 8, if you multiply me by 4 i end in 2.

Why is it important to be aware of you audience's interests? a. so that you can teach them new information thy didn't know b. so that you can use opposite ideas in order to shock them c. so that you can use the most effective strategy to persuade them d. so that you can pretend to like the same things and get them to trust you