Answer:
The Paleozoic involved the appearance of fish, and eventually of life moving onto land. The Mesozoic was dominated by dinosaurs. The Cenozoic started with the extinction of the dinosaurs, and included the development of birds and mammals. ... The Mesozoic Era ended with another extinction.
Answer: C) using the sociological perspective.
Explanation: 1) its the only one that makse sense and
2) make the inference that the question asked about society and the answer says sociological.
How about "recombinant DNA?" Which is the result of DNA cloning as ttom suggests.