GMAT Critical Reasoning (CR) | Re: In the next four years, the number of doctors, nurses, and

In the next four years, the number of doctors, nurses, and other health care workers will increase significantly worldwide. Even so, the average compensation received by such professional will not decline but rather is likely to increase. This is due, at least partly, to the fact that the median age of the world’s population will increase steadily in this same period of time.

The argument above depends logically upon which of the following assumptions?

(A) The increase in the number of health