According to the text, social structures Group of answer choices a. are a part of large, but not small organization. b. only have an influence on impersonal aspects of our lives, like education and religion. c. are difficult to see for the untrained observer. d. do not have any connection to each other.

Option c (are difficult to see for the untrained observer) would be the appropriate choice.

Explanation:

The organized collection of social structures and traditions of institutionalized interactions together which make up society are the social system. Social organization is therefore a consequence of and specifically influences social contact. Social systems are not apparent to the untrained observer directly, but they are still there and influence all aspects of current societal human consciousness.  

The other options offered are not connected to just the scenario in question. So, the solution is indeed the right one.

It should be at the center of any map going vertically: the prime meridian, as it passes through greenwich,  england, is considered 0 degrees longitude