Answer: The correct answer is C) A young man with a white-collar job
A young man with a white-collar job is the most likely to engage in leisure-time physical activity because he does not have enough responsibilities. So, in order to pass his time he will engage himself in a leisure-time physical activity.
Whereas, a newly retired township firefighter is old enough to participate in physical activities. On the other hand, a young, single mother will have other responsibilities so she will have no time to engage in physical activity.
Similarly, a grandmother is old enough so she will not participate in any physical activity.
Thus, option C) is the right answer.
