How Do the Prototype Approach and the Exemplar Approach Differ

How do the prototype approach and the exemplar approach differ from each other?

A) The prototype approach emphasizes that all examples of a concept are equally good.
B) The exemplar approach represents a concept in terms of many specific examples of a concept.
C) The exemplar approach focuses on the most frequently encountered example of a concept.
D) The exemplar approach argues that an exemplar is an idealized example, based on all members of a category.