Final answer:
Engaging in an hour's worth of moderate physical activity every day is the best example of an achievable way to protect your physical health.
Step-by-step explanation:
The best example of an achievable way to protect your physical health is option B: Engage in an hour's worth of moderate physical activity every day. Regular physical activity is important for maintaining good health and reducing the risk of various diseases. It helps strengthen muscles and bones, improve cardiovascular health, and manage weight.
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