A Substantivist Would Be Most Likely to Explain the Kula

A substantivist would be most likely to explain the Kula cycle as

A) an elaborate exercise with little useful benefits to the society.
B) closely tied to important social institutions, such as kin networks, trading ties, and political structure.
C) an opportunity for individuals with keen negotiating skills to get a lot of goods.
D) a way of gaining personal prestige.