30. Leslie is offered a job in Vancouver that pays $50 000. She is also offered a job in Halifax that pays $60 000. Which of the following sets of CPIs comes closest to giving both salaries the same purchasing power? a. 83.3 in Vancouver and 100 in Halifax b. 89.3 in Vancouver and 100 in Halifax c. 100 in Vancouver and 124.5 in Halifax d. 100 in Vancouver and 140 in Halifax