The answer is most logically option C. This is because while the argument does feel like it is backed up with the statistic, there are no other statistics given for other countries. The argument lacks the information needed.
On the macro scale, social structure<span> is the system of socioeconomic stratification </span><span>, </span>social<span> institutions, or, other patterned relations between large </span>social<span> groups. On the meso scale, it is the </span>structure<span> of </span>social<span> network ties between individuals or organizations.</span>