The correct answer is A) use a casual and friendly conversation.
Participants in an informal discussion would most likely use a casual and friendly conversation.
This is a great way to know other people without masks. It is a type of conversion with no formalities. An amicable discussion, casual, simple, friendly to know each other, probably have some laughs and no pretending other things than socializing and having a good time. In this kind of conversation, there is no need to pretending or showing off. It is totally the opposite.
