What should you do if you find the other people’s behaviours ambiguous and confusing in intercultural communication?

A、Ask people to clarify what they mean by their behaviours every time you find them confusing.;
B、Ignore what confuses you and go on with your own ways;
C、Try to make sense of their behaviours using your own cultural repertoire.;
D、Suspend your judgement about the behaviours that confuses you, while observing carefully to understand the cultural meaning and mechanisms behind these behaviours.