Final answer:
The answer is purposeful activity. Purposeful activities directly contribute to maintaining or improving body functions, while preparatory activities help prepare the body for specific tasks or goals.
Step-by-step explanation:
The question is asking which of the two options, purposeful activity or preparatory activity, is mainly concerned with maintaining or remedying body functions. To answer this question, we need to understand the definitions of these terms. Purposeful activity refers to activities that are done with a specific goal or intention in mind, while preparatory activity refers to activities that are done to prepare for a specific task or goal.
In the context of maintaining or remedying body functions, the answer is purposeful activity. Purposeful activities are those that directly contribute to the maintenance or improvement of body functions. For example, exercises such as jogging, weightlifting, or yoga are purposeful activities that can help maintain physical fitness and overall health.
On the other hand, preparatory activities are those that are done to prepare the body for specific tasks or goals, but may not directly contribute to the maintenance or remedying of body functions. For example, stretching before a workout or warming up before a sports game are preparatory activities that help prepare the body for physical activity, but may not directly impact the body's ongoing functions.