Identify the underlined sentence as claim, evidence, or explanation/elaboration.
Zoos should be shut down because they use inhumane methods to create a supply of zoo animals. According to "Essentials of Conservation Biology" by Richard Primack, 90% of zoo animals are bred in captivity. Although their ancestry traces back to a wild animal, many are raised without a glimpse of their original homes. Keeping animals away from their original homes is inhumane to those animals. Such inhumane practices should banned, and Zoos should be shut down.
