John has to choose between two​ jobs: one that offers him​ $50 per hour and one that offers him​ $35 per hour. The opportunity cost of choosing the job that offers him​ $50 per hour​ is: Part 2 A. ​$15 per hour. B. ​$1.50 per hour. C. ​$85 per hour. D. ​$35 per hour.