Add support, make the topic more relatable, add credibility to your topic, and engage the audience.
a. examples
b. narrations
c. testimonies
d. statistics

Examples add support, makes the topic more relatable, add credibility to your topic and engage the audience.We usually give examples to be able to give more support on our our statement and expand our topic

a. Examples is the correct answer.

Explanation:

Examples add support, make the topic more relatable, add credibility to your topic, and engage the audience.Examples make descriptions clearer and give users more extra information. Examples reduce the uncertainties that the point or idea to be incorrectly utilized to real-life conditions.Examples Engage the public and make them interested also provide them a purpose to listen.Thus Examples is the correct option.

Thom bell , bobby martin , and norman harris .