Final answer:
A reactive approach to health is one where individuals respond to health issues after they occur, rather than taking steps to prevent them beforehand. So the correct answer is Option D.
Step-by-step explanation:
In the context of health and lifestyle choices, the approach of being reactive in your healthy choices is best described as responding to a negative situation, such as an illness, after it's occurred. This can be contrasted with a proactive approach, where individuals carefully choose and maintain habits that prevent illnesses before they happen or establish healthy habits to reduce the risk of potential negative health outcomes. A reactive approach to health may involve lifestyle changes necessitated by circumstance, like adjusting one's diet after the onset of health conditions such as Type 2 Diabetes, rather than preventive measures taken earlier on.