Jane is absolutely a Type B person or she has the Type B personality and traits.
There are different types that a person may have. In this case, Jane tends to show the traits of a Type B person. Type B persona has relaxed and laid back personality. These people don't get angry that easily. It might take a lot of trouble just to get them angry. Type B persons does own being an easygoing person, a little bit emotional, relaxed, and flexible in a way that they can handle aggressive co-workers like Jane.
