According to Mukherjee, which of the following is CORRECT regarding human resources for health?
A. Increasing the number of health workers in areas of highest need is a critical component to effectively deliver health care
B. Public sector workers are severely underpaid due to the impoverishment of governments and externally imposed restrictions on public sector spending
C. Decades of under-investment in health education has resulted in too few health workers
D. All of the above