Question

At a potluck, everyone brings his or her favorite dish to share. gavin decides to avoid the foods he has never heard of before and instead eats only the macaroni and cheese he brought to the party. in this example, gavin eating food he prepared himself suggests that he is most influenced by

Answer 1

In this example, Gavin eating food he prepared himself suggests that he is most influenced by Familiarity.  It means a good knowledge of something, in this case, the food that Gavin brought to the party.