I just did a test, the answer is 4, Grand (: Have a good day (or midnight like me smh)
Without transitions the argument will sound bland and unorganized. All the hardwork put into the essay will be futile if there is no embellishment in the writing. Their must be ingenuity put into the argument, like transitions, to keep a reader comprehending your argument, as well as following each and every detail. Without transitions, your paper will not be able to do that.
I think the answer is informative speaking
When your text states that communication is unavoidable, it means that people will probably associate meaning to your actions, even when you don not intend to speak of something.