Jack is planning to drive home from college for the weekend. His roommate, Bill, who lives in the same town has asked if he can ride along. Jack has estimated the cost of driving home at $0.45 per mile which includes the following: gasoline; oil; tolls; maintenance on his car; depreciation of his car. Which of these costs is relevant to Jack's decision regarding Bill's request? 1 All of the costs listed are relevant. 2 The gasoline, oil, and tolls are relevant since they are variable 3 Depreciation is relevant because it is unavoidable. 4 None of the costs listed are relevant to the decision to allow Bill to ride along