Answer:
Option (C)
It helps you determine how effective the speech is;
Step-by-step explanation:
The purpose of public speaking is be to convey information, tell a story, inspire people to act or encourage people. Public Speaking ensures the effectiveness of a speech. Intentionally, this style of speech is organized with three general purposes: to educate, convince and entertain.
Understanding when it is most successful in public speaking and how it is done perfectly is key to understanding its significance.