I'm pretty sure the answer is fingerprint scanning.
Answer:
a. surveys
Explanation:
Survey research is conducted by distributing questionnaires to a large population and then analyzing the responses of the participants with a the help of a computer based statistical software. With the advent of technology, often these questionnaires are distributed through internet and email and therefore the process becomes very simple for the researchers. Here, the example of psychologists is give who can study many thousands of people at a time through survey research and surely this is one advantage of surveys.
The answer is Technology.
Answer: C
Explanation: Normans are located in France. Vikings are located in Scandinavia (North Europe) and Magyars are located in Hungary (East of Europe).
An example would be something along the lines of: " Andrea says that 25% of all households are in possession of a pet". Sociological perspective, simply put is the hypothesis or an assumption that are made about the various societies. Sociology is no mere speculation as it is based on the extensive amount of data and the studies of the complex relationships that exist in every society, both present and the past.
<span />