Answer: Gentry or the upper class. Usually landowners and wealthy merchants.
Cross sectional studies is the correct answer.
Cross-sectional research is used to examine participants' behaviors of different ages at one point in time. These studies are useful for a variety of reasons: data collection can be proceeded rapidly, the cost is a lot lower than a logitudinal research since there is no need to keep contact and follow-up with participants as time passes, and because of that practice effects are not a problem. On the other hand, the principal limitation of this research is that the results produce information regarding age-related change, instead of development per se.
The answer is: A. Organic
Organic solidarity refers to the interdependence that each people in society have toward one another. This is reflected in modern day's social structure.
For example, let's say that Phil and Marie are working in a completely different industries. Phil own a paper company while Marie own a farm. Despite this difference, they still interpendent with one another because Marie still used the paper to record all information in the farm and Phil still used animal products as His meal.