The correct answer is C.
A researcher is a specialist rather than a generalist. This means that they have a deep understanding of a particular topic or field of study. They are also industrious and persistent in the trail of discovery. This means that they are willing to put in the time and effort to find answers to their questions. Researchers are also objective. This means that they are able to see things from multiple perspectives and are not biased by their own personal beliefs or opinions.
Option C is not a characteristic of a researcher because it suggests that researchers are not inspired by their choice of field. In reality, many researchers are motivated by a desire to learn more about the world and to make a difference in the lives of others.