On which of the following criteria is pedigree selection in animal improvement based?

Pedigree selection in animal improvement is based on the performance of the ancestors. This means that animals are selected based on the performance of their parents, grandparents, and other ancestors. This is done in the belief that an animal's genetic potential for desirable traits can be inherited from its ancestors. Therefore, the selection of animals for breeding is based on the performance of their ancestors in terms of traits such as growth rate, milk production, meat quality, disease resistance, and other desirable characteristics. By selecting animals based on their pedigree, it is hoped that the desirable traits will be passed down to the next generation, resulting in improved performance of the offspring.