Correct option is C
Based on the statement provided by the fitness expert, let's analyze the conclusions-
Conclusion I: "The metabolism rate of men in country 'X' is very low."
This conclusion cannot be directly drawn from the given statement. The statement mentions increased food intake and decreased exercise, which can lead to obesity regardless of metabolism rate. There is no information provided about the metabolism rate of men in country 'X'.
Conclusion II: "Exercising is not on the priority list for men in country 'X'."
This conclusion is supported by the statement as it explicitly says that men in country 'X' exercise less than they used to, implying that exercising is not a priority for them.
Therefore, the correct answer is 0nly conclusion II follows.