Answer :
I believe the correct answer from the choices listed above is the second option. An important element in establishing an effective argument is challenging the opposing side. Hope this answers the question. Have a nice day.
The correct answers are Identifying with the opposite side and
Challenging the opposite side.
To argue is to defend rationally an idea or opinion in order to lead an interlocutor to accept as valid that idea or opinion. The effectiveness of argumentation depends on the consistency and persuasive force of the argument