A Father Is Helping His Daughter to Learn About Animals

Multiple Choice

A father is helping his daughter to learn about animals. He points to a robin and eagle and explains that they are birds that fly, while the ostrich and penguin are examples of birds that do not fly. He then shows her pictures of a bat and a flying squirrel and tells her that these are not birds, but that the bat can actually fly and the flying squirrel can glide through the air. To help his daughter learn the concept of "bird," the father is using

A) conceptual rules.
B) algorithms.
C) prototyping.
D) positive and negative instances.