According to the Enhancing Well-Being with Psychology: Using Learning Principles

According to the Enhancing Well-Being with Psychology: Using Learning Principles to Improve Self-Control, why should you try to study in the same location?

A) Studying will become a classically conditioned response to the particular location.
B) The particular location can become a discriminative stimulus that sets the occasion for studying.
C) You're more likely to make friends with other students who think that studying is important.
D) You can avoid distractions such as television or phone calls.