Test Reacting to Disagreement

QUESTION 1: When someone disagrees with you, what is the crucial first step to react assertively?

That you haven't really listened to the other's point of view
That you are a stubborn and inflexible person
That you respect the opinion of others, but you will not let it affect your own position
That you are trying to impose your opinion aggressively

To find the weak points in your argument and be able to refute them
To show him that you are being polite before imposing your idea
To confirm that your opinion was correct from the beginning
Because they may have an argument you hadn't considered, which can enrich your perspective