Planet Design Services, Inc., is considering replacing a machine. The following data are available: Replacement Machine Old Machine $650,000 $500,000 10 Original cost Useful life in years Current age in years Book value Disposal value now Disposal value in 5 years Annual cash operating costs $350,000 $162,000 $98,000 $63,000 For the decision to keep the old machine, the relevant costs of keeping the old machine is O A. $490,000 O B. $652,000 OC. $815,000 OD. $98,000