Answer: The primary field of anthropology addressed in the research is linguistics anthropology. Option B is the correct answer
Explanation: Linguistics anthropology is the study of language and how this language is related to social life. Since the primary aim of the research is to understand how people of different gender communicate. He has to understand the language of the communication first which is linguistics anthropology.
Even though his research will still contain biological anthropology, because during his research he will study the biological structure,which is the gender of each person. His research also contain cultural anthropology, because during his research he will study how different families interact, which may come from different culture. His research also contain archeology, because during his research he will use their documentary footage and archeological factors.
But the primary aim is to study how people of different gender communicate.