Answer :
HIgher wages come with being able to be "picky" about your job, which means that there are not many people applying, but there are a lot of positions which need to be filled.
The correct answer is:
B. Supply of doctors is relatively low, and the demand is relatively high.
The low supply of doctors is connected to the difficult and costly education.
The correct answer is:
B. Supply of doctors is relatively low, and the demand is relatively high.
The low supply of doctors is connected to the difficult and costly education.