Final answer:
Canada, Western Europe, Australia, Japan, and Chile have the highest life expectancy rates due to high-quality healthcare systems, access to clean water and sanitation, and higher standards of living and education.
Step-by-step explanation:
The countries with the highest life expectancy rates, such as Canada, Western Europe, Australia, Japan, and Chile, have a combination of factors contributing to this achievement. These factors include:
- High-quality healthcare systems: These countries have well-developed healthcare systems that provide access to comprehensive medical care, preventive services, and advanced treatments.
- Access to clean water and sanitation: Clean water and proper sanitation are vital for preventing the transmission of diseases. These countries have implemented effective measures to ensure clean water and sanitation facilities.
- Higher standards of living and education: These countries have higher standards of living, which include better housing, nutrition, and overall quality of life. Additionally, they prioritize education, which leads to greater awareness and adoption of healthy behaviors.
Therefore, the correct answer is D. All of the above.