BEAN (a coffee shop) normally sells a large cup of coffee for $3. To promote the sale of its coffee beans, BEAN decides to offer customers a $2 discount on the purchase of a large cup of coffee when they buy a bag of coffee beans (which normally sell for $12) at the same time. A customer purchased a bag of coffee beans and a large cup of coffee for $13. Which of the following is correct regarding the coffee and the coffee beans sold together?

the two are interdependent and interrelated.

the two products are distinct and unrelated.

the two products should be considered one performance obligation.

determination cannot be made.