<u>Answer</u>:
The healthcare system presently used in the United States is the private healthcare system.
<u>Explanation</u>:
The healthcare system of United States is largely governed by the private healthcare sectors. Various types of insurances regarding health care is provided in USA by private health insurance and government health insurance. Some private healthcare institutions include- Medicaid, Medicare etc. Different types of medical coverages are given by the private healthcare institutions depending on the quality, cost and requirement of the candidate. Americans are spending more for their health care and its insurances compared to the other nations.
I believe that the answers are A and B.
The most common source of water contamination is: A. sewage.
