Francisco, Mirabel, Caesar, and Tal are classmates at a culinary school, who opened their own food truck. Each of them specializes in a different cuisine, and they have found that when the four of them stay at their assigned station in the truck and focus on the food they know how to make, they consistently get high praise from their customers. What element of healthy groups is exemplified by Francisco, Mirabel, Caesar, and Tal?
a) Interdependence
b) Productive norms
c) Accountability
d) Cohesiveness