Rose Riley's parents have booked and paid for a family trip to Aspen, Colorado, during her spring break. Rose's friends recently decided to drive to Destin, Florida, for spring break. Rose needs to decide whether to join her parents in Aspen or drive to the beach with her friends. The opportunity costs of joining her friends on the trip to Destin include each of the following EXCEPT:_________
a) her contribution to gas money for the drive to Destin.
b) the ski lift ticket her parents have already purchased for her.
c) her parents' anger if she skips the family trip to Aspen.
d) the hotel costs she will split with her friends in Destin.

Opportunity Cost is always included in decision making. It is said to be the amount or value of the best alternative that is forgone e.g. choosing Dubia over Vegas, the opportunity cost is that which is lost or forgone from not picking Vegas. Firms and individuals do make or take decision about what economic activites or project they want to be involved in. This analysis describes how choices are selected or made and how they could be worked on.

It is the most thoughtful alternative given up as the result of a decision taken or made.