Answer:- The building blocks of health systems, as defined by the World Health Organization (WHO), are:
A. A Health workforce
B. Equitable access to medical products, vaccines, and technologies
C. An effective health financing system
D. Leadership and governance
F. A Health information system
So, the correct answer is A, B, C, D, and F.
Regarding the statement about private health expenditure and out-of-pocket costs:
False. Poorer (low-income) countries typically have lower private health expenditure as a percentage of total health expenditure compared to rich (high-income) countries. In low-income countries, public spending and external aid often play a larger role in financing healthcare, while in high-income countries, private health expenditure, such as private insurance or out-of-pocket costs, may be higher.