You're Out with Friends When a Talk Show Host Walks

You're out with friends when a talk show host walks up and asks if you'll answer a few trivia questions on camera. When he asks how many feet are in a mile, your first friend says 2,000 and your second friend says 3,000. You don't know the correct answer, so you say 2,500. Your response is similar to the judgments made by participants in which study?

A) Langer et al. (1978)
B) Sherif (1936)
C) Asch (1951)
D) Two of the above are correct