Answer
Set c has /z/'-s' ending sounds. I think.
The correct answer should be b. gets the audience's attention
This is called a hook. The other mentioned aspects are analyzed later in the essay.
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>
