The key to maintaining a strong friendship is trust and communication. Youre friends with someone because you two have something in common or simply get along. Trusting and being able to be trusted leaves less room for problems. If problems arise talking it out usually clears up misunderstandings.
The correct answer is A) A connection with the audience.
Since trying to have a successful argument, you will want family and friends to support you and that element is called a connection with the audience.
Hope this helps!