3. You make 120,000 baht per a year at your current job. You are considering job offer from a new company which will pay you 150,000 baht per a year. Which of the following are element of the opportunity cost of accepting the new job at the new company?
a) The increased time spent commuting to your new job
b) The 120,000 baht per a year salary from your old job
c) The more spacious office at your new job