People maintain their folk culture despite familiarity with popular culture primarily because of a strong desire to preserve unique customs.
Option: B
Step-by-step explanation:
People mainly who belongs to tribal society they used to practice their folk culture despite of familarity with popular culture because they have a strong desire to preserve unique customs. They believe in their social rituals and customs. In rural area various tribal clan used to follow this tradition.
Popular culture are those which are popular through out the world. Everyone knows about it. But folk culture varies with social, racial, caste wise. Like Santhal, Bihu, Birhor these are some famous tribal group of India who follow folk culture having a strong desire to preserve unique customs.