Isaac Has Four Potential Jobs to Consider,each with Different Salary

Multiple Choice

Isaac has four potential jobs to consider,each with different salary offers.From highest to lowest,the salaries are: $47,500,$46,000,$45,000,and $42,000.Based on the information provided,if Isaac accepts the highest-paying position,what is his opportunity cost of this position?

A) $46,000
B) $42,000
C) $47,500
D) $133,000
E) $1,500