Muffton, a patisserie in Jewarmet, is best known for its blueberry muffins. As blueberries are not easily available in Jewarmet, Frutmarc, the only convenience store in Jewarmet that sells blueberries, is the only store from where Muffton can purchase blueberries. In the context of the specific environment, which of the following concepts does this scenario best illustrate?

a) Path dependence

b) Supplier dependence

c) Buyer dependence

d) Internal dependence