Answer:
In simple words, Differentiation relates to the growing sophistication of social structure in Parsons' equilibrium concept of social development. According to Parsons, civilization is constantly in a fundamental condition of equilibrium which is described as an equivalent balancing of conflicting impulses . Any abrupt societal change, on the other hand, throws this balance off.
Since it has the most Red, I'd say the US (d).
Union meetings were often held secret because the meetings were often full of information and much information that others didnt. Since they were held secret, many securitys were hired to watch their surroundings at all times.
