Which description defines an expert in a particular field?

The person has worked at the same job for a long time

The person has published many articles and books

The person has a high degree of knowledge about a topic

The person has a college degree

1 answer

The description that best defines an expert in a particular field is:

The person has a high degree of knowledge about a topic.

While the other options can contribute to someone being considered an expert, having a high degree of knowledge is the most fundamental characteristic of expertise.