Based on the scenario above, this is referred to as a mediation process by which is defined as a flexible and informal resolution process in regards to dispute and the role of the mediator is to be able to guide a particular party to its resolution.
The correct answer is letter A. When you lean towards the speaker, the speaker tends to feel and think that you are paying closed attention to the message that he is trying to convey. This is an encouraging non-verbal form of communication that is often seen when a person giving a speech is very much engaged with his listeners.